What is Truck Butt?
1.
A woman with an extremely large ass.
Whoa, did you see the truck butt on that gal? Honk, honk (semi truck horns)
See
2.
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."
See
