Top Tank 

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.

Top Tank by Robert Smith August 6, 2004

Top tank 

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.

Top tank by Matt Regsmith April 30, 2003

Tank top Watching 

When a creepy guy is watching you, (he doesn’t have to be wearing a tank top) but he has to give off tank top vibes. And have a little dirt on his shirt.

“There was this guy that was tank top watching me earlier.”

Tank top Watching by Savowtruffle July 19, 2021

tank top 

A sleeveless, tight-fitting, usually knit shirt with wide shoulder straps and no front opening.

tank tops

tank top by YA RLY! December 28, 2005

Sherman tank top 

A slang term for a ballistic vest. It is referring to the WW II tank M4 Sherman.

That bar is the kind of place the cops don't come in unless they wear a Sherman tank top.

Sherman tank top by CptAhab February 22, 2012

Like a tank top 

Something a ginger kid said at Fantasy World in Kissimmee, Florida who most likely had corona.

I scored a goal! Like a tank top!

Like a tank top by IndigoCircus January 18, 2021

Armenian Tank Top 

When back hair connects over the shoulders to the chest hair forming the proverbial "Armenian Tank Top". Can be used for other hairy ethnic groups i.e. Greeks, Turks, Israelies, Iranians etc.

Did you see that guy sportin' the Armenian Tank Top!?!?!

Armenian Tank Top by matty mcnuggets March 16, 2009