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1.
The poopy dribble that runs down the leg of the futtbuckee! Usually described as "a brown, almost shit kinda liquid"

Poopadoop occurs when a forced fecal excretion, during anal sex, causes a liquid or slurry defication to force it's way through air gaps between the penis and rectum wall of the futtbuckee!
Todd licked off the Poopadoop from Tina's thigh after he fiercely futtbucked her.

After I futtbucked my cousin the Poopadoop had to be washed off my pecker!
by Damian Bunny March 30, 2008
27 16
 
2.
A term used to express feelings of disappointment, fialure, or any othernegative feelings.
Commonly used in place of "shit" and "fuck."
Can also be used to describe someone who just kind of sucks.
Brandon is being so lame.
I know. What a poopadoop.
by Awesomeladee June 18, 2011
10 5
 
3.
The action of poop dooping.
I pooped my doop. Hence Poop-A-Doop
by WillyWillyBangBangYES August 17, 2011
9 5