A FIFO (First-In, First-Out) stack in computing is also known as a Push-down, Pull-out stack - records or events or items are pushed down at the top and pulled out at the bottom. A LIFO (Last-In, First-Out) is also known as a Push-down, Pop-out stack - records are pushed down from the top and pulled out from the top.

You can imagine a FIBO or Push-down, Blow-out stack where you keep pushing events or to-do items (or emails) down at the top until the pressure reaches a certain point at which time the bottom of the stack ruptures and all the items in the queue blow out the bottom and scatter all over the floor.

For some folks, their email inbox is a Push-down, Blow-out stack where any emails that get pushed down below the fold (bottom edge of the screen) essentially disappear from their reality and might as well have blown out all over the floor.
My To-Do list is a Push-down, Blow-out stack which has reached critical mass and exploded; it's blissfully reassuring now that I have nothing in my To-Do list!
by jfkelley June 19, 2018
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Taking a shiznazzle. Dropping the Cosby's off at the pool. Firing off a missle. Pinching a loaf. Breaking one off. Pooping. Shitting. A thick fart.
Oh snap, I went to toot and accidentally pushed the snake out the back door.
by bt March 5, 2003
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When you are constipated and you eat a big burrito to fix the issues.

~Steve Soelberg
Tim: my stomach hurts dude, I think I need to do a poncho villa push out.

Jim: Dude some times you just gotta hit it harder with a bigger burrito.
by Vimless September 9, 2021
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A form of currency amongst gamblers usually wagered in prop bets. If you owe someone call out push ups you must do them immediately without question as directed, anywhere, anytime.

Is also applied to sit ups or anything else bored gamblers can think of.
Call out push ups example:

Degenerate 1: 200 call out pushups I can beat you at backgammon?

Degenerate 2: Sure.

Minutes, months, years or even decades later..

Degenerate 2 in Degenerate 1's office in front of Degenerate 1's boss: I'll take ten right now.

Degenerate 1 does 10 push ups.

Degenerate 2: What time's your wedding tomorrow?

Degenerate 1: 4pm.

Degenerate 2: I'll see you then. You might wanna stretch out. I might cash in on all 190 so it's a day to remember 😊
by spuncer December 9, 2020
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