shitting bricks out of a duck’s bum 

It means “to push something large through a small hole or entrance that can be very painful or difficult to get rid of”.

(Feeling constipated)
“Man, I’m gonna be shitting bricks out of a duck’s bum if don’t poop soon”.

shitting bricks out of a duck’s bum by Miltalie November 16, 2023

The Buick is out of the garage 

An expression to discreetly let another male know that his zipper or fly is open on his pants.

John, "the Buick is out of the garage" man.

The Buick is out of the garage by Hung4Whatever October 14, 2012

Brickout 

Someone who is an exceptionally poor shot. Either in basketball, hockey, soccer, other sports or with firearms.

Used mockingly and sarcastically in reference to the game Brickout! in which the objective is to accurately shoot bricks in order to win.

The irony and humor here is that the person you are calling brickout is unable to aim.

Nice shot there brickout. Try to hit the backboard next time.

Brickout by Cartesian Dualism September 8, 2014

brickout 

loser, tool, someone you don't care about...at all, a mooninite

From Mayhem of the Mooninites:
Carl: "Nice shot there brickout!"

brickout by Jbren September 30, 2006