Dank Malarky

anything inappropriate but still funny
e.g.
dressing up as hello kitty at a Japanese business interview.
parking in a disabled spot dressed in overalls yelling profanities at a cactus.
dressing up as a fish to a funeral for a guy who drowned alive.

Justin: hey James wanna get up to some Dank Malarky?

James: yeah what if we dress up like ladies and have casual sex with paying men.
Justin: I guess