the exposure of male genitalia in a public place, most commonly public transport. Eg a train, bus, taxi etc...
The first person to then notice this unusual display then gets a slap and "MR PLUMS SURPRISE" shouted loudly at their face.
The first person to then notice this unusual display then gets a slap and "MR PLUMS SURPRISE" shouted loudly at their face.
by snatchbandit February 11, 2010