Top Definition
A large poop, containing cargo (such as corn).

The act of leaving such a poop.
1. "At the party last night, someone upperdecked my fucking toilet."
"Gross, dude"
"Worse than that, it was a fucking cargo shit."

2. "Yo, I totally cargo shit in Eric's toilet last night."
"Nice, dude."
"Better than that, it was an upperdeck."
by Ben & Milkey May 08, 2008
5 Words related to cargo shit

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