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3.
A sexual device created by Bill Cosby in 1975. The tube is to be lubed up then inserted inside both partners anuses. One partner then leans him or herself on something and proceeds to shit in the other persons ass when the shit goes down the tube. The partner who recieved the shit then gets on top of there partner and shits there partners shit on their own chest, face, or mouth. The device has remained popular in scat porn circles and an electric poop tube is forthcoming.
I was watching Bill Cosbys porn series "Back
Door Fuglies" last night and I noticed that his infamous poop tube was featured extensively. It was awesome some guy ate his own shit that his partner pooped in his mouth, it was tasty. I Loved it so much that I Went out and bought the stretchable poop tube and I ate my own shit.
by Mcfarthuntd19 February 09, 2010
 
1.
The tube like section of the body in which fecal matter exits. Your anus.
I just let my entire dinner slide out my poop tube.
by K-rizzle November 16, 2004
 
2.
A poop tube is when you put your hand in a tube like shape and put it over someone's mouth and take a big meaty shit and stuff it in their mouth with one finger.
Last night my girlfriend was begging for the poop tube.
by Lady fuck February 28, 2009
 
4.
The area where you sheizen out of in place of a anal substitute.
keep your finger out of my pooptube.
by Mike March 17, 2005