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1. When somebody destroys the bathroom with shit.
2. When somebody's taking a shit while having a spasm
Man I went to the gas-station bathroom, somebody took a shitsizm, the toilet wasn't enough to contain it, it was smeared all over the walls.
by metallica36 April 03, 2013
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Aug 11 Word of the Day
You can tell by the way she walks, she got that WAP.

You can look at her face and tell she ain't got that WAP.
by Black Don August 06, 2020
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defecating uncontrollably, usually in a public bathroom of a less then fine establishment, i.e. truck stops, gas stations, waffle houses, and leaving the mess for others to have to witness
Man, some loser shitsizmed all over the bathroom stalls!!
by bernieburned1 April 04, 2013
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