1. (US) to perform cunnilingus [abbr. muff-dive v.].
|(con. WWII)In Spring the War Ended 19: I mean, can you see me muffin’ some redheaded, sonofabitchin’ broad?|
|Queens’ Vernacular 139: muff [...] to tongue the clitoris and vulva.|
|Who is Teddy Villanova? 234: Whatinhell they really do, Rome? Muff one another?|
|‘Masturbating Man’ on Camilla’s Erotic Stories Jun. [Internet] I waited the weekends eagerly for her increasingly sophisticated blow jobs, and I much enjoyed muffing her and going down on and sucking and finger-fucking her seemingly near insatiate cunt.|
2. to have sexual intercourse with [muff n.1 (1)].
|Roger’s Profanisaurus in Viz 87 Dec. n.p.: muff 1. [...] 2. v. To shag; have intercourse with.|