a juxtaposition of the words road and masturbation...Def. When you got major boneage at the steering wheel and are jackin it with one hand while fist bumping to techno music with the other, usually culminates in the roadbater busting all over the dashboard...
I just saw harry potter last night and, man that scene where harry and hermoines ghosts we're making out had me roadbating all the way home to eden praire
A car with whom you happen to drive at the same speed during an extended road trip, thus sharing the road with them for several hundred miles, and forming an unspoken connection.
It was a pretty desolate drive to visit my friend out at (insert state school), but I became roadmates with a red Ford Focus for two hours, I think a part of me died when it turned off the exit.
Someone or something that bites your ankles.
To a postman, an ankle biter is often known as a dog.
To an adult, an ankle biter may be a toddler.
To hikers, an ankle biter is sometimes a tick.
And so on.