Wienerskid

Wie.ner.skid /wee-ner-skid/
verb -s, -ed, -ing
1. the act of unintentionally jizzing in one's underwear

noun
1. the remnants left on one's underwear when one jizzes in his pants.

I woke up this morning to discover that i had wienerskid my pants

by Johnson, Harry Dick February 28, 2012