To abruptly have meant quit, but in the moment of passion a slur occurs producing the beautiful and somehow better sounding word for the occasion....SQUIT!
A contraction combining "just" and "quit". Used when someone does something stupid. Can also be used as a comment on a MySpace picture, especially when the person tries too hard to be cooler, prettier, or generally more attractive than they really are. Can be used anytime "just quit" is appropriate.