A suffix to a sentence which indicates that the sentence did not need to be said and everyone involved would have been better off had it not been said.
A word used to describe people who are generally self obsessed, try to be smart and fail and who think they are hilarious. This is accompanied by the genuine belief that anyone who finds this unpleasant is the one to blame.
Karen describes herself as sassy in her dating profile. Wise men and women know this is a cue to swipe left.