Plumbing engineer

A fancy title that a plumber, often affectionately termed a 'drippy' or 'pissy' in the UK, may like to give themselves. This is a gross misconception, they are merely a plumber.

Jim: "I've got a new job!"
Bob: "Congratulations mate, what work is it?"
Jim: "I'm going to be a plumbing engineer."
Bob: "Fuck off mate! You're gonna be a plumber, you jumped up cunt!"

Plumbing engineer by Asshole5001 December 8, 2017

a plumbing focus 

This is someone who is fascinated by the anal-genital area of the body and it's function.

Jose had a plumbing focus on women.

a plumbing focus by I, Wreckerrr March 13, 2021

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 the Dumpling 

When your girl is taking a shit you come in and stick your dick in her mouth forcing her to give you head because she can't go anywhere.

I was plumbing the dumpling the other day and she shoved the plunger up my ass.

Plumbing the Dumpling by DYC Yetti August 8, 2010

reverse plumbing 

When the hot pipe is connected to the cold side of a sink or shower and the cold pipe is connected to the hot side, making it so when you turn the hot knob you get cold water and when you turn the cold knob you get hot water.

I had the hot water knob on for five minutes and it still didn't warm up. It was then that I realized that the sink had reverse plumbing.

reverse plumbing by chonk cat December 17, 2011

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