something you say to a person that bores you, but you want them to seem like you're actually interested in what they're saying.
Person 1:"hey did you know that plants go through photosynthesis? also they produce oxygen for us to breathe!"
Person 2:"really? that's so coolio!!!"
by RAndOm_PeRsON*^_^* October 28, 2009
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Coolio, derives from the word, cool, as an adjective that describes someone who you desire mostly. People or inanimate objects such as the PS3 would be described as coolio
Anthony is so goddamn coolio.
by CHANTHONY December 19, 2006
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A fag version of the word cool. Please do not use it.
Guy 1: Yo dude that shit was coolio!
Guy 2: Fuck off.
by Slayer of gay words October 22, 2010
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something datz even cooler dan COOL!
John: Yo J i got da new God Of War!
Jim: Coolio!Ima come ova nd play it in a lil while den!
by Da Prince of Crunk March 22, 2007
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"Been spendin most our lives livin in a gangstas' paradice!"

-Coolio, 1995
Coolio: Been spendin most our lives livin in a gangstas' paradice!"

Henry: How the fuck did you get into my house?

Coolio: Power and the money, money and the power, minute after minute, hour after hour!
by YOURFUCKINGSEXYASSMOM April 27, 2022
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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
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synonym to cool, rad, narly, sweet, awesome, ect.. Something to say when you're excited about something, but to cool to squeal and show emotions.
Girl 1: Check it out! Selena Gomez is preforming in Portland!
Girl 2: Coolio!
by yayayayacrazygirl January 24, 2013
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