Swirth
Something which is bad, vile, or revolting. Plural - Swirthing; the act of doing something bad to someone, or ruining their plans.
Swirth - "Dude, look at that punk girl over there, she's so swirth!" Swirthing - "Sorry I can't come over today, my mom is totally swirthing me."
Swirth
An adjective that describes something grotesque.
The old crack house was rather swirthy.