the object or action being described by this phrase does NOT need to apply to music to be used correctly, and certainly not to that specific genre of music.
-no, how was it?
-it was awesome, their lead guitarist is really crazy latin swingjazz
-hey i made some brownies, want some?
-yeah man! that's crazy latin swingjazz!
-how are they?
-mmm. great, crazy latin swingjazz.