beerrunbandit92's definitions

Murphy dick

When a man gets an erection for no apparent reason, usually in the wrong place at the wrong time.

Jimmy goes up the to front of the classroom to give a speech.
Teacher: Jimmy whats that in your pants?
Classmate: Haha he's got a murphy dick how embarrassing.
Jimmy: Shut up its not my fault!

by beerrunbandit92 September 9, 2010