Receiving a deep throat from a trashy girl, she swallows your seed just as you back out a massive turd which falls into the toilet making the plop sound, a bit like the blumpkin but better.
Slang term used as a game name for the art of giving a blow job
Often used on unsuspecting females as they generally do not know what it means, and the person who asks the question can find it mildly amusing when they are bored, or just being dirty.