A car gets "fish tanked" when some idiot leaves their sunroof open during a terrential downpour. The best form of the "fish tank" is when water flows out your door when you open it.
Wow, it sure was raining out. Chris's car got fish tanked real bad!
by dcastdal October 11, 2013
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its like teabaggingbut before the testicals go in the partners mouth, they take a drink so their mouth is full of liquid.
"yeah it was so great when i fish tanked lorn, it was rather exellent" i love "fish tanking"
by crazyfritzle May 3, 2009
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ok think about a fish tank four sides so you need four people 2 girls and 2 guys make the guys face the girls and then they have sex standing up so they make a two lines next to each other like the equels sign. now there are sides air between the people are the sides and a bottom!
man: lets fish tank all night
lady: but we need more people
man: get your roomate i 'll get mine
lady: ok

and they fish tank alllll nite long and moan

I like the wayyy u fish tank baby
by karlee furlicker July 27, 2009
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When a female gets oral sex while taking a dump in the upper tank of a toilet.

It’s like a female blumpkin mixed with an upper decker.
Sara gave me a blumpkin last week. I returned the favor by hooking her up with a dirty fish tank in the restroom at the mall.
by Ann_Archy September 12, 2018
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v. : to engage in sexual intercourse or other sexual activities in the bathroom.
Andrew: Dude, what was that girl and guy doing in the bathroom?
Leo: They were just cleaning the fish tank.
Henry: "Cleaning the fish tank"
by scoobydrew February 26, 2008
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