Top Definition
The act in which one removes the lid to the tank of a toilet and proceeds to deficate or shit. Once finished, replacing the lid and walking away as if nothing has happened.

End result: Next person flushes toilet and shit is then flushed through.
"Yo dude...I just did a 'Upper Decker Toilet Wrecker' up in that pisser man...hahaha...poor bastards"
作者 Shaff Dizzle 2004年1月05日
1 Word related to Upper Decker Toilet Wrecker


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