Meaning to leave a huge massive shit or performing the Shit Explosion in a person's house by purposely not flushing or cleaning after yourself.
Boyfriend: "Hey I just left a dirty bomb in your bathroom."
Girlfriend: "What's a dirty bomb?"
Boyfriend: "Go in the bathroom and find out."
Girlfriend: "OK."
Girlfriend: "What's a dirty bomb?"
Boyfriend: "Go in the bathroom and find out."
Girlfriend: "OK."
by dj_holydumbf**ck October 20, 2006
A big old, stinky, steamy, custard brown, nasty smelling dump, capable of making a public restroom unlivable for hours at a time. Often found to be present upon the exit of a Kurz.
Man, I was going to drain the lizard, but Nick must have dropped a dirty bomb in there. The smell about knocked me over before I could get the door open!
by In Error January 20, 2005
A fart which is expected to be loud, deadly, and stinky. While it is all of those, along with it comes a surprise turd.
I was planning to stink up the class, but instead dropped a dirty bomb and ended up in the bathroom for 2 hours
by pigsaregod November 10, 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.
by super troop October 06, 2009
arriving at a pool and instantly jumping in to hide the fact that you have an erection or that you wet yourself.
by Fatblob6 July 17, 2011
Taking a large dump so foul smelling that it is suspected of being part of a Mexican terrorist attack. Unlike a actual terrorist Dirty Bomb using radioactive material this is the Mexican equivalent using bean fueled Poo.
OMG stay away from the bathroom ! Dave set off a Mexican Dirty Bomb in there and it is unsafe for living creatures.
by PappySmear May 29, 2011
Brian: "Hey Keith, I tried that move last night, with the finger."
Keith: "Ohh, the Philadelphia Dirty Bomb? I did that this morning."
Keith: "Ohh, the Philadelphia Dirty Bomb? I did that this morning."
by hymee9 September 17, 2008