Top definition
the residual shit stains in your underwear at the end of the day. Just like skid marks, but more apt to be from a possible shart.
Randy was prone to excessive muffler marks so he switched from tighty whities to dark boxers.
by turriblechuck January 26, 2012
Get the mug
Get a muffler marks mug for your barber Rihanna.
Sep 8 Word of the Day
A casual invitation / threat used by an individual that is not afraid of fucking someone up.
PAUL: I'm going to beat your ass.

JACK: Fuck around and find out, fool!
by NX STARCHILD October 16, 2020
Get the mug
Get a Fuck Around And Find Out mug for your dog Vivek.