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
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 November 14, 2010

by CountRex March 28, 2010

(verb) the act of removing the lid on the top of someone's top bowl of their toilet and deficating in it. Followed by placing the top bowl lid back on. Fish tanking is used so that someone can scrub their toilet but they won't be able to get rid of the smell because the defication is in the top part of the toilet.
John fishtanked Scott's apartment and Scott could never get rid of the smell, because the terd was in the top part of the toilet.
by Popisdead February 07, 2005

When two people are making out intensely enough and for such a duration that they make a considerable amount of noise.
This often irritates the unlucky individuals around them, who must either tolerate the noise or awkwardly tell them to "shut the fuck up".
This often irritates the unlucky individuals around them, who must either tolerate the noise or awkwardly tell them to "shut the fuck up".
Girl: "Hey, I totally know about how you you two were hooking up in the closet last weekend."
Guy: "How'd you find out?"
Girl: "Because you two were totally fish tanking!"
Guy: "How'd you find out?"
Girl: "Because you two were totally fish tanking!"
by MasterFishTanker February 20, 2011

The female equivalent of a "Sausage Fest." A room, place, or situation, filled with all girls, and little to no guys.
by JAHSIB March 12, 2012

by GG January 24, 2004

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.
by dcastdal October 10, 2013
