When a man has anal sex doggy style while smoking a blunt, removes his penis from his partner, takes a big hit and blows it into his partners anal cavity. Then his partner farts out the smoke creating a "smoking tailpipe" effect.
Mike was having anal sex with Holly and blew his blunt smoke into her stretched out anus. When she farted after it looked like a "smoking tailpipe" of a car.
by nasty but true December 12, 2013