redneck afterburner

When forcefully and repeatedly thrust your penis into the tailpipe of an ex's car.

Garret: Hey man, did I tell you about that time that my ex cheated on me, so I gave her Honda Civic a Redneck Afterburner?!
Jack: Oh my god, that's hilarious, I did that to my ex after she gave me a windy tuna!

Garret: Oh dude, that's Savage!