A person who works on highway or roadside construction while working with tar and crushed rock.
A British hillbilly located somewhere in the Adirondacks in the states of Vermont, New Hampshire, Maine, or New York. Nobody is aware as to where they come from or how they got to where they are, but they are infamous for appearing out of forests near rarely used highways and pulling down their pants, shaking their ass in front of cars passing by before returning to the woods in which they appeared. They have also been seen paddling bare naked in wooden canoes when it is raining heavily, only wearing a pair of construction ear muffs, with one of the ears having had the silicone removed from it. Known places of residence of Tarmac Jacks are often red white and blue tool sheds in the middle of nowhere next to a desolate road with at least one hundred "kill Biden," or "fuck Biden" signs in the front. The most common locations that these men are found are in Tupper Lake, New York and Stark, Vermont and Berlin, New York, and sometimes, but very rarely, Concord, New Hampshire.
Well, looks you've scored yourself a job as a roadside worker, Jim. You'll be a real Tarmac Jack now!
Who's that weird motherfucker shaking his ass in front of our car?
Ah, don't worry 'bout that, Jimmy boy. That's just one of them lunatic Tarmac Jacks.