Best definition
“Must be following” on Tumblr; maybe even Twitter.

First 20 to reblog will be promoted. MBF (inserttumblrnamehere).
mbf: define #2
Acronym for Metro Best Friend
Yvi: Who’s that guy over there with the v-neck?

Christine: That’s just my MBF, JP.
mbf: define #3
The term used between close friendships. MBF stands for Mega Best Friend.
Dylan: Hey you’re my MBF

Mariam: You’re my MBF too!
mbf: define #4
An acronym for “Milky Bum Factor”

Anal perspiration caused by hot and humid conditions. Leaves one’s bum feeling moist an unclean. The higher the MBF factor, the worse the milky bum feeling is.

Seriously, it is so hot & humid outside i think the MBF is at 9.5 today.
mbf: define #5
Missionary Butt Fuck
Sarah: Oh my G I hurt so bad.

Jessica: Why’s that?

Sarah: Well I let Steve missionary butt fuck me (MBF) and now I am afraid I will have to steal some of my grandma’s diapers so I don’t shit my pants.

mbf: define #6
Abbreviation for “must be fried.” Said when someone says something so ridiculous, they must have been fried.
you- OMG i wanna see that movie! i had a dream i saw it, but i never actually saw it… this is like SO much fun!!!!!!!

me- damn you MBF.
mbf: define #7
married black female, same thing as mwf except she’s black
looking for mbf to hook-up with this weekend, it’s always been a fantasy of mine.
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