plumbing 

The reproductive system (gender neutral).

She went to the OB-GYN to have her plumbing checked out.

plumbing by Octopod November 6, 2003

Plumbing 

Generic term for the bars of a jail cell

The plumbing in this joint consists of at least 1" hardened steel.

Plumbing by GGJoe April 14, 2015

Plumbing 

Wearing one's pants so low as to display one's asscrack. Derived from the state of many a fat plumber's pants.

Dude, pull up your pants you're plumbing.

Plumbing by lesseins August 14, 2008

Plumbing 

The act of purposefully stopping up your toilet so that the plumber will come to your house and unclog it.

That weirdo gets off on plumbing.

Plumbing by superchar January 13, 2009

plumbing 

(verb) Very deep anal penetration
Deep-sea plumbing: Anal penetration over 10 inches

"That horse was plumbing that girl yesterday"

plumbing by Stan Albright June 5, 2007

Plumbing 

Plumbing is a sexual act involving a man and a female. The aforementioned male pops his penis in the girl's vagina, lubricating her ring, tickling and widening the said orifice. When that there hole is at maximum size, the man pops the scrotum and both balls in that bottomless pit of love.

That girl last night was a bucket, I was plumbing her without even realising. It was mint.

Plumbing by googabooga April 29, 2009

Plumbing 

Bhe act of saving a life when a person is drowning or choking by repetitively thrusting one's penis in and out of the person's throat. The thrusting creates a plumbing effect that forces the obstruction to move up the throat. This action is in no way sexual; it should only be used during times of grave danger.

Dude! Ellen was drowning at the pool today! Luckily, the lifeguard pulled her out of the water and started plumbing her until she coughed up the water.

Plumbing by 6HyungPaq9 June 3, 2010