An intimidation move where one player sacrifices their queen for seemingly, and actually, no strategic advantage. The purpose of which is to "psych" out ones opponent, making them think that they have fallen or are falling for a play they can't find because it doesn't exist. If ones opponent falls for the cum gambit they are essentially allowing a queen free offense for a round.
Tom, the fucking idiot, would've had mate in four. But instead of taking he fell for Jerry's cum gambit and lost his rook and got his king put in check.
A type of gambit in chess where you sacrifice your king to then have your queen go through gender reassignment surgery to become a better, stronger king.