The act of defecating in the back tank of a toilet. The result is that whenever there is a flush, the bowl fills with tainted water.
Before I moved out, I top tanked the toilet in the master bedroom.
by Robert Smith August 6, 2004
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The act of taking a serious shitsickle in the top tank of a toilet.
dude that chicks party was so lame top tanking her toilet was the only way to add a little atmosphere...she'll never forget that night once she discovers where that stench is coming from...don't go back for a few days !!!
by last star fighter August 25, 2007
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Taking a dump in the systern of a toilet. Holding youself up by you hands on the wall and dropping in a bombay bad boy. The only way that can be fixed is if a glass-monkey mops the whole stinky area out.

Particularly skilled people can piss at the same time and even sometimes get a few drops in the bowl.
Norm gave Gilhooley a top tank for his birthday. He thought and animal (a trained dog) had done it.
He was wrong.
by Matt Regsmith May 1, 2003
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A sleeveless, tight-fitting, usually knit shirt with wide shoulder straps and no front opening.
by YA RLY! December 6, 2005
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When you go out without the deadweight of friends who can’t keep up (similarly going out in the summer in just a tank top without a jacket to weigh you down).
Marley, we’re tank topping tonight, don’t invite anyone.
by Sobo1234 May 22, 2022
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A tank top is a shirt that has no sleeves and varying shoulder strap width. It’s essentially just a shirt that shows your shoulders along with the rest of your arms. Great to wear anywhere even if it’s cold, you just have to have tolerance for the cold
Becca: I love the way that tank top defines your shoulders!
Katie: Me too! All the guys say it looks weird to see me in clothing that reveals my shoulders since I’m always in a sweater. Thought I’d give my shoulders a chance to be exposed and see the light of day!
by Tanktoplover February 9, 2019
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a sleevless woman's shirt with a wide space between the straps
Where did you get that tank top?
by The Return of Light Joker September 25, 2007
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