To deficate one's dignity by arriving at their home, opening the tank of their toilet, and subsequently taking a dump in it. Results in clogged pipes and humiliation. Related to shelfing
What will happen if you piss someone off.
by Gooche May 11, 2004
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Any vehicle, which despite being in numerous wrecks, fenderbenders, and crashes, still runs.
"Dude, My 240sx is a tank. has been in like 5 crashes, and it still runs!"

"That car is a tank. Its been flipped 4 times, hit a guardrail, a deer, and a fencepost! And I drive it everyday..."
by 240-is-go! November 7, 2006
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the definition of tank is jon. he poons noobs. GXC BITCH
jon is a tank and he poons noobs
by dan and kevin October 20, 2006
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having sex with a female very hard, usually in the arsehole.
i tanked those little bitches down souf' fo' reel!
by tommy November 5, 2004
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The act of removing a toilet tank lid, standing on the seat, and taking a dump in the tank of a toilet so the next person who uses it flushes out shit.
"Man, they fucking fired me so I tanked that fucking toilet on my way out!"
by lithos July 11, 2006
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A extra large poop; A poop that exceeds the size of a regular poop.
I have to tank right now!
Eww that tank is nastayy.
by adam March 1, 2005
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A female's sexual organ; see also: pussy, vagina, clit, cunt. (brought about by Shea, while reading the hip-hiptionary.)
Damn, I needa get some tank tonite!
by MattsNinjaMajik April 4, 2004
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