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fun way to say nasty, also implying that you really think something is gross instead of nasty as in cool. falls into the fun words category with schwasted and schwafted. if it's not fun to say, don't say it.
A: i just saw The Hills Have Eyes last night. some of those mutant people were really schnasty.

J: dude, that whole f***ing movie is schnasty.
by angus bohanon July 09, 2006
A word my friends and I came up with, originally "snasty", a slur of "that's nasty". Like "bad", it can be used with either a good or a bad connotation, meaning either "yuck!" or "sweet!"
Dude, that was so schnasty, do it again!
by SouthwestHaHa August 30, 2004