cool guy: Is cooliosos your new contribution to the language, like super mega awesome? It might catch on..
by docmcsnoodles November 18, 2010
by butterflyprincess1 July 11, 2008
Hawaiian for "major douchebag". Pronouced "cool-e-o-so".
by Mondo Coolioso April 17, 2011
"Sherly is acting soooo coolioso with posting those badly synced dances to stupid pop songs on Tiktok."
by rrrrrrrrgh March 31, 2023