The act of doing uncommon sometimes nasty acts that may or may not be justified.
"That party last night got real rasty!" "Kyle got real rasty last night when he drank that chew spit for $100." "Andrew's new name is now 'King Rast' because of all the rasty shit he does."
by THE_NEO January 29, 2012
Combination word formed from raunchy and nasty. Often used to describe scents, although it can be applied anywhere raunchy or nasty can. Developed from a need to express a sense worse than nasty, but that raunchy may be too riske for.
Dude, that stankweed smells absolutely rasty!
by Giant peach November 08, 2005
Rasty is Nasty with an "R". It means course, crude and unpleasant.
Bob's friends were a rasty bunch of bigots.
by Woda June 09, 2005
Rasty comes from the word ratchet and nasty put together.
That thot is rasty...
by lean bean September 13, 2014