The combination of shitting and pissing out of your anus. Often occurs after mexican food and/or a night of heavy drinking
I ate so many damn tacos and drank so much corona last night, that everybody in the office today heard me shizzing on the toilet
by Fat Bastard August 07, 2002
When a male experiences overwhelming nervousness and arousal causing him to void his bowels and ejaculate simultaneously.
When a male (usually a nerd) is attempting to have a conversation with an attractive female and becomes so nervous and aroused that he begins shizzing.
by Nibs McGee April 19, 2011