Muffler fuck
Verb; The act of ramming your vehicle into the rear end of another vehicle at a considerable speed.
-"Damn, that guy was going pretty fast when he hit you"
-"Yeah, he muffler fucked me pretty bad"
-"Yeah, he muffler fucked me pretty bad"
Muffler Fuck
A fag who fucks mufflers, usually named jimmy
look at jimmy...that muffler fuck!