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The act of committing unspeakable atrocities on or about the nearest toilet available, usually as a result of eating questionable food or experiencing traumatic life events. Toxic fumes and shit stained bowls are the easiest ways to identify TBT.
"I knew stopping by that Hot Dog vendor last night wasn't a great idea, but I never thought I'd be spending my Sunday engaging in Toilet Bowl Terrorism because of it."

"My girlfriend cheated on me with my best friend and now I can't stop shitting liquid plasma from the emotional distress. Consuela is going to be pissed when she sees the Toilet Bowl Terrorism she's going to be cleaning up this week."
by Chad Danger August 05, 2013
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