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26.
Coolio is a word that originates from the word 'cool'. Many people use it as a substitute.
The people who use the word are trying to be unique and try to be different.
40 year old man : 'Woah, my action man is so coolio!'
by piano_226 February 27, 2007
 
1.
Meaning cool, but typically used as a one word response and not part of a sentence.
Quaay says, "Hey, Inde, I just bought more ram for my computer!"
Inde replies, "Coolio!"
by Quaay July 04, 2004
 
2.
a West-Coast artist who has been making music since the late 1980's for Tommy Boy Records.

people say that Coolio is a one hit wonder with his chart topping song "gangstas paridise" but that is not true...Coolio has many great songs such as "Geto Hilites" "Sumpin New" "Too Hot" "Fucc Coolio" and "Exercise Yo Game" so his album "Gangsta Paradise" is considered a classic by those who heard songs other than just gangstas paradise
Coolio is a lyrically talented yet under-rated MC
by tha truth teller May 23, 2006
 
3.
new fad, same definition as cool. Should not be said by someone over 30.
Man that concert was coolios!
by Taheka December 14, 2003
 
4.
Another way of saying cool
but sounding like cherios
haha
"oh em geee look at my new shoes"
Wow they are so coolios
by Annie_Bananie March 11, 2008
 
5.
Adapted from the word cool. Used to show you care about something but not enough to make a full-fledged comment on it.
Melissa: I think I'm getting a new hamster!
John:(doesn't really care about the new hamster that much) coolio.
by mickydee March 14, 2008
 
6.
Coolios is the most awesome way of saying cool. it usual implies a bouncier happier personality and can be used to brighten an otherwise bland statement.
Rose: ...and then he kissed me!
Sarah: coolios, thats awesome!

Mark: you wanna hang out after school tomorrow?
Josh: sure!
Mark: coolios.
by wolferman August 27, 2010
 
7.
Coolio (pronounced Cool-ee-oh)
the peak of all that is cool. used as one word usually, and has that same basic meaning as the word 'cool' but said with an ittalian accent. doesnt have anything to do with cheerios.
LA - its coolios kid.

AJ - that hat your wearing is seriously coolio.

BOTH - coolio amigo!
by AJ & LA October 27, 2008