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The opposite of a detox.

When you know you're going have a ridiculous amount of alcohol over the weekend and you decide to go out for a few drinks the night before as preparation - it's the drinking equivalent of stretching.
"It's the stag do this weekend, the pretox will be in the local from 7 tonight"
by Matt4579 May 25, 2006
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2
The act of abstainence prior to a major alcoholic binge
Jonny W: how come you are not drinking tonight
Jonny S: just cleaning the pipes for my weekend in Napa with da boyz
Jonny W: Pre-Tox. Niiice
by The brown fox June 28, 2013
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