Someone who is never able to think on their feet, but can always think of the perfect
course of action to have taken well after
the event has transpired. Often
eager to tell people
what they "should have done".
John: I should not have told her I screwed
her sister until after
the divorce settlement.
Joe: Way to be hindsight savvy.
Jim: You should have folded on the flop.
Jack: Go fuck your self Jim, you pompous ass, hindsight savvy, mother