MMR 

Match Making Ratio. It's a hidden skill rating giving to you by Blizzard's complex rating system. You are never allowed to see it, but it determines "Favored, Teams Even, and Unfavored". It also determines league.

My MMR must be huge, I went from Bronze to Diamond in 3 game

My MMR is bigger than my dick, and my dick's bigger than Mount Everest. 2+2=a big dick.

MMR by DeminRamst March 1, 2011

MMR 

Stands for the medical vaccine which prevents measles, mumps, and rubella. "MMR" comes from the first letter of each disease.

Jake received his MMR vaccine as a child.

MMR by cypat25 July 15, 2005

mmr 

An onomatopoeia used in written digital social media (WhatsApp, Discord) to denote a positive emotion or a laugh, both ironically and unironically, trough making a long bilabial nasal sound followed by a voiced dental, alveolar and postalveolar trill to end the sound.
It is mostly used by pro-gamers, people who want to scape from Latin-América and V-tuber fans.

It is elite courtesy to respond with another mmr or only mr in case you are in a hurry

Person 1: I fell down my stairs
Person 2: Did it hurt?
Person 1: No
Person 2: mmr

Person 1: My internet does not work.
Person 2: mmr
Person 1: mr

mmr by mmr Man October 23, 2020

mmr 

make me rice

walking up to an asian and saying " mmr".

mmr by AsiAnsFood November 7, 2011

MMR 

MMR (masculinism mgtow redpill): Victimization of the male sex and demonization of the female sex.

I am against MMR (masculinism mgtow redpill).

MMR by Mosktalken March 20, 2023

Mmr 

Matchmaking Rank

Hym "Since you wanted to say something and since your CLEARLY don't understand how Mmr works (With your useless inferior mind) I'll explain it to you in simple terms. You noticed that but did you notice that I'm ALWAYS the first on the list? That's because I'm playing with someone else who's rank is lower then mine. Which means I'm ALWAYS the best person on my team. By default. So, because I have this other person with me the mmr system filled the other positions with people worse them me and then I have to try to carry them to victory because WITHOUT ME ON THE TEAM THEY LITERALLY WON'T PLAY AGAINST PLAYERS AS GOOD AS ME. They'll get match with players at their level. I'm doing pull-up with a 100×person weights. I climb as fast as a pro when I'm alone. I'm actively trying to carry someone else to a hugher level. It's harder than just winning. If I'm the worse person on EITHER TEAM my team will win so easily the game wouldn't even be fun. Because for someone to actually be better than me they need to be a professional AND play every day."

Mmr by Hym Iam April 1, 2023

MMR Assassin 

A radiant player who plays like a headless chicken, runs around staring at the floor and proceeds to bottom frag on your team. However, when they are on the opposite team, they are the rebirth of S1mple and are god tier.

Guy 1: This guy on our team is so bad, he's bottom frag Reyna in Radiant.

Next Game

Guy 1: Bro this is the same bottom frag Reyna from last game hitting all his shots, all these MMR Assassins are making me derank

MMR Assassin by burhhrhrhr January 25, 2021