Sick Nast

an adjective to describe something awesome

Geoff O'Callaghan is the sick nast

by Geoff February 22, 2004

sick nast

1. extremely disgusting,
2. a shortened version of sick and nasty

1. That sandwich is sick nast. Its been in your fridge for 5 months!
2. Jared told a porn joke, sick nast!! He's such a perv!

by mibackibenzibie February 08, 2008