Australian slang synonymous with American terms such as "hipster" or "scenester".
Those girls are such coolsies with their bangs and iPods.
από Jon Wilcox 5 Νοέμβριος 2005
1 more definition
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.
από Nora Kay Figi 8 Απρίλιος 2005