pfoofer valve

the correct spelling of the phrase "foo-foo valve". Reference to the noise when one lets an accidental pass gas "pfoof/pfft", and more obscure but relevant reference to the slang australian (and new zealand) term for a gay man "poof"- as indirectly referring to the anus.

he nearly blew his pfoofer valve

pfoofer valve by random cat March 4, 2015

Poofer Valve 

The anus hole

When you see someone lifting a heavy, you would say
Slang:
"dont blow ya poofer valve"
Translation:
"please do not prolapse your anus everywhere my friend"

Poofer Valve by THE--ASSMAN January 19, 2012