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Jeep lag is similar to Jet Lag, however Jeep Lag is achieved by driving into a new timezone in which the body's interior clock is not accustomed to. The body will need to rest to 'synchronize' the interior clock with the local time zone.

See Jet Lag.
Steve: Dude, I just drove all the way from BC to Mont Tremblant. Shit, I've some heavy Jeep Lag!

Jim: Do I know you, eh?
by CanadianDefsPLZ March 19, 2010