Top Definition
Clenching a fart for an extended amount of time before strategically bombing an entire room. Thee toxic gases produced in the aftermath may cause bystanders to gag and/or vomit.
"I set of a wicked Tokyo Timebomb in Social Studies yesterday."

"I tried to Tokyo Timebomb some bitch yesterday, but i ended up shitting my pants"
by Colonel Yusef Harodobi Mashu April 10, 2013

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