Backranker 

A term used for a person in chess who checkmates the other guys king with a rook on the back rank of the board. Usually when a king is castled with 3 pawns in front of it, the rook slides down to that rank and the king is stuck behind the pawns and cannot escape leading to checkmate.

Chess player one: How did that guy win?
Chess player two: He was a backranker.
Chess player one: :(

Backranker by TheRaginRussian June 12, 2014

Backpack rape 

When someone bumps into your backpack from behind multiple times

Billy backpack raped joe

Backpack rape by Unicornmoo March 15, 2018

Backpocket cheeseburger 

Used to describe how retarded or autistic someone’s acting

My old friend Adam has backpocket cheeseburgers

Backpocket cheeseburger by God Logan February 6, 2020

prison backpack 

A place in which one can store many useful items such as: a shiv, drugs, a file, keys, a gold watch (like Butch's father). The term seems comes from trying to smuggle contraband into prison.

"Quick Bob, the cop is walking up to the window. Hide the shit."

"I don't have anywhere to hide it!"

"Use your prison backpack."

prison backpack by walker_flocker September 17, 2016

Backpack Niggler 

when you carry a small black child in your napsack

OMFG you have another backpack niggler again

Backpack Niggler by Modaholiic August 29, 2011

Swedish Backpack 

When a man drops his handful of genitalia on an unsuspecting person's back, usually when the other person is bent over or lying down. Then the man must sing, "Borty, borty, borty!" like the Swedish Chef.

A fine gentleman is taking a romantic shower with his loving wife, when he "accidentally" drops his shampoo bottle. The wife does what any loving person would do: she picks it up. Then the man drops his balls and cock on her back and sings like the Swedish Chef, "Borty, borty, borty!" She has then been given her official Swedish Backpack.

Swedish Backpack by Lothar Aspirin February 23, 2009

turtle backpack 

The most badass thing in existence. A backpack, that looks like a Teenage Mutant Ninja Turtle shell. It comes with 4 masks

"Dude, was that Donatello that just walked past?"
"No that was just Lucy in her badass ninja turtle backpack."

turtle backpack by badasscj September 17, 2011