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verb: to be drinking alcohol
(see also "piss = beer" and "piss head = alcoholic")
He's really on the piss tonight!
by breivegan August 13, 2003
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2
1.Out with the boys/girls drinking lots of grog.

2.Built slightly out of whack, skewif, out of sync, not straight.
"You smell like you've been on the piss all night"

Boss- "That wall is on the piss, fix it"

Carpenter- "You need to speak to Johnny, he fucking built it"
by B3NN0 May 19, 2007
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3
when something is not straight, level or aligned properly.

usually as a result of lazyness, poor workmanship or being under the influence.
"gee Michelle, Angelo's parking is really on the piss today"
by zed z June 18, 2009
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4
Another common technical term used in engineering to describe components or entire assemblies that are neither level or straight.
'See that, the lifting eye is on the piss'
by Waveforms February 22, 2018
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