guyscara Share definition Flag (N.) What guys where around there eyes that is the equivelent of mascara. It is also called guy liner.This is typically worn by people who are under the stereotype of "emo". Guyscara so doesn't look good on that emo kid over there. He needs to stop posing. guyscara by Ma-Rak January 6, 2009 0 0 Get merch Get the guyscara mug. Buy Now — $32.95 See more merch