The act of receiving road head while driving off-road so as to allow the bumps in the road do the work for you.

Caution: Driving too fast while receiving off-road head can have disastrous results. 15 mph is the maximum recommended speed.
Erin said she was too tired to give Michael road head so he turned his 4x4 down an old dirt trail to get some off-road head instead.
by drawkcaB July 15, 2015
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high on drugs or drink , out of it not really here
"i took so many painkillers i was off my head"
by da junkie July 28, 2006
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Pissed as a mofo and on his fucken arse
Tommo: Look at ribbs he is off his head
Ben: Hahahahahaha yeahh
by Darren Thomson April 28, 2005
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Completely wasted and out of it whilst on drugs. Unable to concentrate or particiapte in coherent conversation because you're completely screwed up with some kind of dope.
by Bob Dylans Monkey Friend November 9, 2004
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