M.I. 

"mentally incapacitated" - extremely random person - extremely annoying and special and complicated. Someone who doesn't understand anything for the life of them.

"Kim you are just too M.I. for this conversation - now leave!"
"Kim you are too M.I. for me it hurts my feelings."

M.I. by Brynnycole July 19, 2005

'm'I 

"Am I"

You've seen "I'm" get ready for... "m'I".

It's pronounced like "my", but it's actually a very shortened version of the phrase "am I", just like how "I'm" is "I am", except it is flipped.

So it means "Am I" instead of "I am".

'm'I.

'm'I the silliest person ever or what?

No, I think I'm the silliest person.

You're silliness doesn't hold a candle to my silliness!!!

How 'm'I supposed to feel about you comparing yourself to me like that?

'm'I by IAmPseudonyMeRoar!!! November 14, 2020

M.I. 

Abbreviation for Mental Illness, (sometimes spelled MI) popularized by musician Leon Waldo.

Man, today my M.I. is acting up. I feel like shit.

M.I. by Pluto Blüe July 2, 2021

M.I.A 

M.I.A( missing in action). Most people go m.i.a when there going through a lot or don't want to talk. M.I.A people will not answer there phone for days at a time. Some take time to reflect or think about what's hurting them or how they feel.

bailey went m.i.a have you heard from her?

M.I.A by xxsad.badbitchxx January 10, 2020

M.I.N.F 

M.I.N.F. is an acronym for Mothers I'd Never Fuck. This term is the polar opposite of M.I.L.F. It describes a mother well past her prime who has NOT aged well, and yet tries to dress and act like a teenaged skank. A M.I.N.F. will throw her kids to the wayside for a chance at sex with younger attractive men that are way out of her league, though she can be pacified with booze, fake compliments, and compulsory groping. Young men should be forewarned that M.I.N.F.'s are akin to vampires. Once you invite them in, they will freely invade your space and can only be vanquished with a public denouncing and calling out in front of witnesses OR a stake rammed neatly between the saddlebags (taking care to avoid the extensive push up and out bra) to the heart.

Guy 1: UGH. I started flirting with this M.I.N.F at work and now she won't leave me ALONE. She keeps hanging around and telling people we have this "thing" going.

Guy 2: Dude, didn't you read the playa handbook? Never flirt with a M.I.N.F. That's like signing a contract with the devil. You always get more shit than you bargained for.

Guy 1: I KNOW! Bitch is all up in my face and business and cockblocking me at every turn. She's skantless and fugly.

Guy 2: Bro I got stakes in my trunk. Let's end this.

M.I.N.F by Trish76 July 17, 2010

m.i.l.f 

mother.id.like.to.fuck

his mom is a m.i.l.f

m.i.l.f by michael October 7, 2003

M.I.R.P

Generally used in roleplays, it is used in a description of the character you're playing.
It is an acronym for More In Roleplay.

.+*Star Rise*+. |Female, loves stars, artistic, musical, smart, always tired, M.I.R.P|

M.I.R.P by Star Rise / Palette / Lunar November 14, 2017