The act of shitting and pissing explosively, in a simultaneous manner,(sometimes occurring involuntarily), so as to relieve built up tension.
by MRPOPO September 8, 2005

Ex1.
Man#1: I was just about to head over to karaoke night at the Half Baked Tator bar and grill when I shpissed myself in the kitchen. Yep, took a huge shpiss right there on the carpet.
Man#2: damn
Man#1: I was just about to head over to karaoke night at the Half Baked Tator bar and grill when I shpissed myself in the kitchen. Yep, took a huge shpiss right there on the carpet.
Man#2: damn
by Gabby J. Johnson October 23, 2017

by Wankstar123 May 22, 2018
