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Derve is an alternative word for alcohol. It can also be used to describe the consumption of alcohol.
"You on the derve tonight lad?"

Michael: Live to derve
Ben: Derve to live
by Dervetbh January 11, 2012
To have ones penis sucked. Blowjob
...with the really tight mouth gave me a derve last night.
by AngryJ May 10, 2008