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  1. Function: adjective
    Definition: very cool and excellent
    Word History: Coolio was created by Jennifer D.
    Example Sentence: That book was so coolio!
    Submitted by: Jen from PA, USA on 10/20/2007 05:28
  2. Function: adjective
    Definition: definitely one of the coolest of the cool
    Word History: Family cousins started saying it.
    Example Sentence: He is so coolio.
    Submitted by: Maddie & Bray from Idaho on 10/17/2007 08:33
  3. Function: adjective
    Definition: very cool or awesome
    Word History: A long time ago, a little girl had speech problems and when she tried to say "the cool Rio" (meaning the river Rio), she said "coolio."
    Example Sentence: Staying in style is really coolio.
    Submitted by: Lysis from New York on 10/16/2007 09:59
  4. Function: adjective
    Definition: totally cool and super awesome
    Example Sentence: That is a coolio sweatshirt.
    Submitted by: Anonymous from Canada on 09/29/2007 04:57
  5. Function: adjective
    Definition: really very cool
    Example Sentence: What you did was so coolio!
    Submitted by: Anonymous from NY on 09/26/2007 05:30
  6. Function: adjective
    Definition: really awesome: only used by really awesome people
    Word History: This word was developed by girls at our elementary school.
    Example Sentence: Look! Her hair is coolio!
    Submitted by: Gertie from MN, USA on 09/25/2007 06:40
  7. Function: adjective
    Definition: cool
    Word History: It comes from my head.
    Example Sentence: That is so coolio!
    Submitted by: Katherine from New York, USA on 09/21/2007 01:46
  8. Function: adjective
    Definition: very awesome: even more than "cool"
    Word History: When they couldn't descibe something cooler than "cool," they decided to make up a new word that was better.
    Example Sentence: That roller coaster was so coolio!
    Submitted by: Anonymous on 09/18/2007 06:19
  9. Function: adjective
    Definition: cool
    Example Sentence: That is coolio!
    Submitted by: Sally on 09/18/2007 03:27
  10. Function: adjective
    Definition: really cool and awesome
    Word History: coolio comes from the word cool
    Example Sentence: My new dog is coolio.
    Submitted by: Anonymous from Louisiana, USA on 09/17/2007 09:01
  11. Function: adjective
    Definition: something cool
    Word History: when I drew something cool
    Example Sentence: Now that was coolio.
    Submitted by: Hi from CA on 09/17/2007 05:43
  12. Function: adjective
    Definition: cool, wow
    Word History: my friend said it to me
    Example Sentence: That is so coolio!
    Submitted by: Anonymous from California, USA on 09/16/2007 02:39
  13. Function: adjective
    Definition: something that is pretty or cool or something that is fashionable
    Word History: I had to read Frindle and think of a word.
    Example Sentence: My brother acts like he is coolio but he really is not coolio!
    Submitted by: Bacon from Alabama on 09/12/2007 09:47
  14. Function: adjective
    Definition: You are a cool person.
    Word History: It developed with kids making it up and saying it
    Example Sentence: Scott is very coolio.
    Submitted by: Anonymous from Illinois, U.S.A. on 09/11/2007 04:49
  15. Function: adjective
    Definition: Means cool or awesome!
    Example Sentence: Coolio! I rock!
    Submitted by: Bitty from CO, USA on 09/10/2007 09:02
  16. Function: adjective
    Definition: Cool, Amazing.
    Word History: My friend Stephanie started to say it once and it just clicked.
    Example Sentence: Wow you got a new i-pod coolio.
    Submitted by: Stephanie And Ra from Texas & Egypt, USA on 08/28/2007 10:13
  17. Function: adjective
    Definition: Cool, awesome, great
    Word History: It's just another word for cool!
    Example Sentence: Whoa! Check that coolio outfit!!
    Submitted by: Lauren from NY, USA on 08/20/2007 05:04
  18. Function: adjective
    Definition: cool
    Example Sentence: This is coolio.
    Submitted by: Laura from Georgia, us on 08/17/2007 11:55
  19. Function: adjective
    Definition: 1. a cool way to say cool 2. when you think you need a word better than cool
    Word History: from cool
    Example Sentence: I love your shoes! They are so coolio!
    Submitted by: Sophie on 08/15/2007 04:01


  1. Function: adjective
    Definition: cooler than cool: super cool
    Example Sentence: The outfit she was wearing was coolioacious.
    Submitted by: Diana from Oklahoma, USA on 07/03/2008 07:52


  1. Function: noun
    Definition: a tray to cool down cookies just out of the oven
    Example Sentence: She used the cooliod immediately after the cookies were pulled from the oven.
    Submitted by: Kamarella from MN, USA on 11/05/2009 12:42


  1. Function: noun
    Definition: a person or thing that is way better than just cool
    Word History: It's the coolest way to say cool.
    Example Sentence: I have coolioness.
    Submitted by: Becky on 10/05/2007 09:45
  2. Function: noun
    Definition: the state of being so cool that you need a better word than just "cool"
    Word History: It was a mix of cool and sweetness.
    Example Sentence: The coolioness of the movie made me want to see it again and again!
    Submitted by: Anonymous from Westfield, MA on 10/03/2007 08:06


  1. Function: adjective
    Definition: cool and silly at the same time
    Example Sentence: She is so cooliop and fun to hang out with.
    Submitted by: Lala from South Carolina on 09/30/2010 04:18


  1. Function: adjective
    Definition: being terrific and cool
    Example Sentence: My friend is so cooliorific!
    Submitted by: Rachael from Arizona, USA on 07/11/2008 07:19


  1. Function: noun
    Definition: a disease which makes a person cooler than most
    Example Sentence: The doctor diagnosed him with severe cooliosis.
    Submitted by: Anonymous from Florida on 10/11/2008 06:36


  1. Function: adjective
    Definition: A person who was born amazing, awesome, and cool.
    Word History: I was bored, so I thought of this word of the day.
    Example Sentence: My best friend Natalie was fortunate to be cooliotacious.
    Submitted by: Val from Texas on 09/08/2007 08:00


  1. Function: adjective
    Definition: cool with a touch of irony
    Word History: from cool and ironic
    Example Sentence: That was a cooliro comeback.
    Submitted by: M. from Ohio, USA on 06/23/2009 11:20


  1. Function: noun
    Definition: words or actions that are super cool
    Example Sentence: Her reply was full of coolishness!
    Submitted by: Allie from Nevada, USA on 07/24/2008 07:04
  2. Function: noun
    Definition: the degree to which someone or something is cool or awesome or better than something else
    Example Sentence: The coolishness of that laptop beats my desktop.
    Submitted by: Vollygirl from IN, USA on 11/07/2007 08:07