Transitive verb. To fill (your) trousers.
When a person is scared or surprised to such an extent that involuntary and explosive defecation (aka shitting) takes place.
When a person is scared or surprised to such an extent that involuntary and explosive defecation (aka shitting) takes place.
Dude, when I walked round the corner with that joint behind my ear and saw the police car, I totally filled trou.
by Major Brownwings February 13, 2011