The stripe that is on the underside of the penis where it looks like the skin has been joined together.

If you check your own penis you will see it - and as it has no official medical term, and has appearance the of a seam weld, this is commonly referred to as 'The Weld'.
Look at ' (The) weld' on that cock
by Les of Lesbania November 12, 2010
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The seam of skin between the bullet hole and ball bag or vagina (minge, gash, clunge etc)
I'm gonna kick you in the weld
by Weld Licker September 05, 2013
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(Jamaica, old school) To engage in sexual intercourse.
I'm goin' to be weldin' her big time tonight, mon.
by bigword February 01, 2008
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The space between a mans anus and nut sack. It is where a man is said to be welded together.
You can lick my weld if you like...actually just lick it anyway.
by Sub-Prime August 05, 2005
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At raft camp, Josh and Lola were totally welding, you could see the sparks.
by yolivia June 02, 2013
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A large individual with a shape that resembles the popular character 'Bigweld' from the 2005 film 'Robots'
Heckin' heck I've spotted a Weld outside the pub
by NotIVSwarm November 14, 2018
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