look up any word, like smh:
 
1.
To have casual sex with a girl.

derrived from how many pornos involve plumbers.
See that hot girl? I'd totally plumb that.
by rsktod January 08, 2005
 
2.
to shove your tool into a girls dirty snatch
gabe wants to plumb michelle
by dufa January 10, 2007
 
3.
an extraordinarily large set of nuts that resemble two plums swaying gingerly in a latex glove.
i stopped pumpin the bitch, but my nuts kept swayin like a pendulum from my nacho to her gut
by Els April 03, 2004
 
4.
Extremely, entirely, absolutely. The correct spelling of the word as it is used, especially in the Deep South, is plumb, not plum.
That dog ran so fast after the rabbit, he was plumb exhausted.
by Ole Deepsouth September 28, 2012
 
5.
A simpleton, dunce or idiot. Sometimes used in London.
"Eric's just fallen down the stairs... what a plumb!"
by el tony July 25, 2006
 
6.
scrotum
ball bag, i.e the scrotum..e.g.. I`ll boot yer plumbs
by M.nelson September 25, 2003