my husband is a road dog. he is away in his truck all week
by sandrop4 November 3, 2012
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1. a traveling/hitchhiking companion.
2. another term for roadie; act of being the same.
1. "I can't leave without Seth, he's my road dog!"
2. "Johnny got to road dog with string cheese incident last month."
by 2day September 7, 2005
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Verb: A lady giving head to the passenger whilst in the driver seat. Said lady must put car in cruise control, and passenger takes control of the steering wheel.
Lady: Hey baby, grab the wheel cause I'm about to give you some great road dog.

Gentleman: uh huh.
by Latoya116 April 3, 2017
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a person who is consistently "on the road", on the go, or someone who travels to and fro frequently.

an experienced driver, elusive, careful motorist. Transporter.
The way you're driving smoothly makes me think of you as a road dog.

by Fingers McKillJoy March 4, 2007
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Someone you have been in jail with.
Been in jail or prison with a friend (road dog).
by blkhg November 30, 2007
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When you look next to you and see a guy getting road head, but the chick is so ugly you mistake her for a dog, or other hairy creature.
Guy 1: Hey isn't that Alan?
Guy 2: Yah, why does he have a dog on his lap?
......
Guy 1: That's no dog!!!!!
Guy 2: EEEWWWW!!! He is getting Road Dog!
by TheUnfortunateObserver69 March 27, 2011
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