small patches of short, scruffy body hair that grow on random parts of a person's body, espcially the underchin and upper ass
Hey Brian, shave your filthy ass muffling off the side of your face.
by Kyle Hamlett May 16, 2008
1 more definition
The female equivalent of cock blocking.
That girl spent all night muffling me.
by Zenshu November 29, 2010