Someone who drives too close to the car in front of him/her--a tailgater.
"(aloud in car when looking in rearview mirror) Hey, get off my ass, muffler fucker!"
by AJinPhilly July 29, 2005
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noun: one who is too attached to cars, makes sweet love to cars commonly through the muffler

"Reece is a muffler fucker"
by Anonymous August 26, 2003
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