A woman with an extremely large ass.
Whoa, did you see the truck butt on that gal? Honk, honk (semi truck horns)
by Casey Mayfield March 3, 2007
Get the truck butt mug.
cigarettes that are kept only in ones car or truck and only smoked while the said person is driving about
I need more truck butts for the long drive.
by Cacheous October 3, 2007
Get the truck butts mug.
The dangerous and un-nerving experience of being tailgated very closely by a large truck so that all you see in the rear vision mirror is a large shiny bumper and a truck radiator.
Mary: "What's wrong Dave, you've got white knuckles and your driving is a bit erratic."

Dave: "I'm a bit nervous Mary, I've got Truck Butt from this 22-Wheeler behind us."
by Adam Vaughan-Williams March 13, 2008
Get the Truck Butt mug.
A tricked out truck. Although on first glance the butt truck might look like a stunt to attract the ladies, it is a form of peacocking designed to score male ass. Indeed, the driver of such a monstrosity often is not yet aware of his extravagant homosexuality.
Man No. 1: Yo, check out the ground effects on that butt truck. I want to do that guy now.

Man No. 2: (Hysterical laughter.)
by OnceElfJab March 20, 2008
Get the butt truck mug.