As far as I know, the following bridge-related terms were first coined by some member of the Stanford Bridge Club. Corrections and additions welcome.
Persons attributed:
danger play (JB/RR): The opposite of a safety play; making a riskier play when a safer one was available (but not a totally ridiculous play). Also: danger bid, danger double.
moron squeeze (RR): as declarer, running off all the winners in your hand when you have only one loser remaining, hoping the defenders cannot figure out what your last card is. Use of the term generally implies that it should be obvious to the defenders what card to keep. (A milder term, "memory squeeze", is more widely known, I think, and there is the neutral "pseudosqueeze" that is in common use)
+2/-2 (AM): bidding "adjustment" in which opener subtracts 2 points from his hand when bidding, and responder compensates by adding 2 points to his hand. Can be applied to just about any existing bidding system, some more successfully than others