Alley Poop 

Similar to the upper decker but with a European twist. Many european toilets have the tank mounted to a wall up high with a pull cord which is used for flushing. Since the tank is high it is nearly impossible to perform the upper decker so in order to perfect the alley poop one must defecate on a transport medium (bag works fine) and then transplant this specimen into the upper tank manually. The next several victims to use the toilet are left literally with a shitty situation. The alley poop must be used with great caution and requires substantial skills to pull off correctly.

Man Peter was being a total douchebag last night"->"Don't worry about it man, there was 15 seconds left on the shot clock and I hit him with the alley poop

Alley Poop by joetheshow66 June 10, 2011

Alley Poop 

When one friend is finished shitting in the bathroom, he alley oops the shit to his buddy across the house and dunks that shit on his girls tits.

The assist you gave on that alley poop was spot on! She loved it!

Alley Poop by $limbo July 7, 2019

alleyoop 

In basketball, the shot where one player throws the ball up toward the rack, usually to one side, and another player grabs it in mid-air and performs a slam dunk.

Kobe and Shaq did an alleyoop.

alleyoop by fizzle April 10, 2004

alleyoop 

1)in basketball, to pass to a midair teammate who proceeds to slam dunk the ball. 2)to set up someone else with an easy, quick finsh to a joke.

1) There's Dwyane Wade with the alleyoop to Shaq for the easy finish.
2) "... so apparently me and her are just fuckbudies now"
"what a bitch"
"yeah, fuck her" <---the alleyoop
"occasionally literally" <---the punchline

alleyoop by Joe U May 31, 2006

alleyoop 

In the game Counter Strike, giving a boost on top of the boxes.

Hey Beer, can you give me an alleyoop up to this spot??

alleyoop by Damsel March 29, 2005