Cade: What're we doing at Whataburger?
Hound: Tank's empty, bro. Need to refuel with a burger and spicy ketchup.
Hound: Tank's empty, bro. Need to refuel with a burger and spicy ketchup.
by KnightofNerdom June 18, 2019

The metaphorical container that holds all the liberties in a friendship. Occasionally needs refilling to keep the friendship in a proper give-take equilibrium. Can be refilled by one friend giving the other friend food, alcohol, sexual favors, money, rides, or even filling their actual gas tank.
Molly: "Mike, can you drive me around to do some errands today?"
Mike: "It's been a while since you filled up the friendship gas tank..."
Molly: "What if I buy you Taco Bell?"
Mike: "Deal"
Mike: "It's been a while since you filled up the friendship gas tank..."
Molly: "What if I buy you Taco Bell?"
Mike: "Deal"
by Mike the LCB August 3, 2012

by 2guysandagirl August 18, 2022

A legend told about the reformer Martin Luther and that he had a septic tank outside of the church he used to work at. When this sentence is used it means that someone's backyard or garden is filthy.
1. Bro this place looks like Martin Luther's Septic Tank
2. Indeed bruh my bad
1. I'm going to throw Martin Luther's Septic Tank at you
2. Indeed bruh my bad
1. I'm going to throw Martin Luther's Septic Tank at you
by huskyspin April 4, 2025

by sangre August 13, 2025

To absorb an absurd amount of educational material for prolonged periods of time without writing it down.
Nikita: I'm learning so much here it's cray
Andrew: Are you writing any of this down or just mind tanking?
Andrew: Are you writing any of this down or just mind tanking?
by Splunkit April 7, 2017

When its a race to get to the bathroom after your stomach has been hurting so bad and taking the biggest shit possible.
Dude: O MY GOD IM GOING TO TANK !!!!
*he runs to the bathroom*
Dude2: O my god hes tanking in my bathroon ....
*he runs to the bathroom*
Dude2: O my god hes tanking in my bathroon ....
by Mark-Shadows October 30, 2009
