Particularly violent discharge of near liquid feces into the toilet bowl, resulting in a splattering effect around the rear of said bowl. Flushing will not remove this weld splatter, and it becomes dried on and very difficult to clean later. Sometimes under extreme porcelain welding conditions the tank, or wall behind may be hit by the weld splatter.
"Man Steve did some porcelain welding after dinner, Who's gonna clean that up"
by bunyon December 30, 2006
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When semen is allowed to dry and harden inside the ass after anal intercourse, gluing the orifice shut and forming a seal.

Stands for "Jizz in the Butt" Weld
I had sex with this girl the other day. But she was being a total bitch, so I JB welded her ass shut.
by BCracecar December 15, 2012
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When two men spend so much time together that others are given the impression that a homosexual relationship could be evolving.
He is up in the boss’s office every morning. They need to quit weenie welding.
by What’sinana September 04, 2019
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To reach a point of stress, anticipation, or engaging an act that is so extreme that you clench the cheeks of your buttocks together so tightly, that your taint is effectively welded together.
John was driving so recklessly that Steve was taint welding in the passenger's seat
by TK42FUN May 03, 2015
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Wiggle Weld is used by the motor industry to repair brush on weld 'properly'.

After a brush on weld, the surfaces are heavily contaminated and cannot accept a propper weld. As a reuslt, the repairer must wiggle weld the area.

This is done by poking the welding torch into the hole, pushing the trigger and rapidly wiggling it about causing lumps of slag to stick at random to the surfaces. Slag, kown for its structural strength, then builds up and gradually fills the hole.

Unlike brush on weld, wiggle weld will generally pass an MOT!
Mechanic:- Some matey has brush on welded this car. Gonna have to wiggle weld it.

MOT Tester:- What the Fuck is that?! A Kin Wiggle weld?! Oh alright then!
by DMIG October 31, 2011
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