Someone who is into ass play (takes or gives).
That girl is so fine and she's a muddler.
by Santorum1 November 05, 2008
A hot fudge-like shit mess quickly followed and mixed with a sandy peanut buttered shit.
Gregg: Damnit....that weird New York food I ate is ready to be born again. I think I feel a muddler coming! Fuuuuuuuuck!!
by alxorange July 09, 2012