Female equivalent of the male "Willy Warmer". Keeps the vagine from frosting over. Can be worn at ice rinks and on Christmas Day if you are preparing for seasonal hanky panky.
Crickey Darling, I'm shrinking up inside myself it's so cold down there. You should have worn your muff muffs!
A sex position where the man pops a chocolate muffin on the front of his willy and proceeds to anally pound a woman, afterwords eating the muffin/shit mixture out of her bumhole.
Woman 1: Tyler and I MuffMuffed last night, it was so hot.
Woman 2: Daaaaaaaaaaaamn, did it hurt?
Woman 1: Nah, he's got a chode so it wasn't too bad.
By Chrysler
Muff Muff Birdman
A person dressed in a bird outfit that likes muffs, both ear muffs and chicks muffs
Timmy dressed up in a bird outfit for the night and went searching for Muffs, the only muffs he found were ear muffs, "dont worry" timmy said, "I am the muff muff birdman and pig nosed mozerella cheese man on thursdays.
Tom: "Hey Harry, want to hit up Sara's with me later?"
Harry: "What are we going to do?"
Tom: "There will be a ton of single broads there, so I expect a little muff muff gash!"
Harry: "I'm in."
By Orelie
Muff Muff
The nickname for a user on Gaia Online. He's not well known (or important for that matter), but he's an awesome fella'.
He likes music.
Oh yeah, and Pokemon, fools.
Muff Muff is used when you have a crush on someone and you don't want them to know because they have a girlfriend who happens to be one of your friends, so you need a disguise name for them and "way moo moo" is used when they are looking or acting really sexy.