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Acronym for Yeah I care so. Origin found to been Park High School, in Cottage Grove, MN.
-Hey I just got an A on this paper.

by TheSkinnyPHS September 15, 2010
Stands for Yeast Infected Cunt Scab.
1) An exaggerated product of said infection
2)see douchebag
3) Bridgette
Bridgette the irish gender-confused leprachaun pirate is a big smelly YICS
by Dr. FuH-ZOoLeE September 24, 2004