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2.
A "cute-ified" term for cool; similar to calling a sip of beer "a sippy of beer".
It's really coolsies that you went to the mall.
by Nora Kay Figi April 08, 2005
 
1.
Australian slang synonymous with American terms such as "hipster" or "scenester".
Those girls are such coolsies with their bangs and iPods.
by Jon Wilcox November 05, 2005