arriving at a pool and instantly jumping in to hide the fact that you have an erection or that you wet yourself.
Person 1: "Did you see that guy jump straight in?"
Person 2: "Yeah, it must've been a dirty bomb!"
by Fatblob6 July 17, 2011
When you intentionally unleash a nasty fart in in a small room like someone's bedroom or office.
I went to talk to my apartment manager and she was really rude to me, so I dropped a dirty bomb on my way out.


"Dude, someone just deployed a dirty bomb in here."
by Big Lerm March 10, 2009
Sexual Act
To properly lay a 'dirty bomb' one must first deficate on their partner's chest (in between the boobs) and finally must slap the boobs together (inward) to launch the fecal matter all over the face and lower areas.
by Bushuu February 21, 2010
While performing anal sex, the act of withdrawing prior to ejaculation and slapping the other on the forhead while cumming with the shit covered penis.
"Dude, I totally dirty bombed that skunt last night."
by super troop October 06, 2009

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