(verb) To chowder ones pants.
Oh my God, that girl was so hot that I plotched myself.
the sound something makes when u spit and it hits something ...also a substitute for jizzed or cummed
Alex:what would you say if I were black?
Dylan:I'd say plotch again?!
Dylan:then I'd laugh cuz i said plotch
Damn that girl was so hott i plotched all over the floor