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1.
Secretions produced following anal sex.
There was a stain on the matress from Julie's post anal drip.
by Floyd Dangle April 28, 2006
 
2.
Just when you though you had a nice dry fart.........you end up with a poopy surprise in your shorts
I thought that was gonna be a dry fart.....I have post anal drip
by Bluemonkey May 24, 2014
 
3.
what you get when attempting to fart, but you end up with a hershey squirt coming out instead.
i got a bad feeling that there is some post anal drip in my underwear after that last fart i let out!
by Richard Fromage May 19, 2004