1 definition by yayayayacrazygirl

Top Definition
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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