a sexual act that may or may not be popular with trans women, according to Miranda Bellweather in Fucking Trans Women #0 muffing is the sexual act of penetrating one or both of the inguinal canals.
I LOVED muffing her last night
by censation December 15, 2010
Get the muffingmug. by BC Ted August 9, 2003
Get the muffingmug. A derogatory word used to describe simultaneous oral sex between two lesbians, often referred to as 69.
by Mr Muff April 12, 2007
Get the muffingmug. by Giggles124 April 8, 2013
Get the muffingmug. by BandyE May 13, 2016
Get the muffingmug. Phooh, she's / he's absolutely muffing !
by Muffindamule October 1, 2006
Get the muffingmug. 