by iohnoprngs March 23, 2009
We was about to hit it right, but i reached in, felt that bush and though "damn, this bitch muffed up." She knew she muffed up too.
by Fisherella June 30, 2009
Jack muffed up Jason's face after Jason attempted to finger Jacks mothers asshole while she was sleeping.
by scott January 30, 2004
muffed up means fucked up. use "muff" to replace fuck. very fun to use so you dont get in trouble by the parentals or offend the old folks. use different variations of muff too-muffer, muffing, etc.
by Kyle Ernesti June 17, 2006
by Alex Hildenbrand May 06, 2010
Alexandra King: "Hey, Scottie! Raina's a muffed-up low-bag and you need to stay away from her! And she's going to be a meth-head and she's gonna get used by stupid guys!"
by Deviant and Shaven March 07, 2014
To get fucked up.
by Themuffreport February 10, 2019