MOS

Okay, everybody else's definition of MOS is wrong. They are all stupid. Here is the real explanation: When a man loves a woman very very very much, they engage in an act called M. O. S. MOS stands for Mutual Oral Sex and is extremely pleasurable. Also see 69, Something that is awesome, the shit, the awesome, the best thing ever, etc.

Jennifer: Hey Austin, wanna MOS?

Austin: I like men.

Jennifer: Oh.

Jennifer: You don't know what MOS is, do you?

Austin: No. *Looks sad*

by International Lesbian Actor, George Clinton September 18, 2006

MOS

Man on the side; meaning a man you have secretly in addition to your current relationship. Sometimes developes into a boyfriend/girlfriend relationship.

I'm going to LA to meet my MOS for a great weekend away from the hubby.

by Cali 521 August 19, 2008

Mos

Mom over shoulder

I can’t talk right now mos

by Marspott October 29, 2017

Mos

An autistic bitch

Mos is autistic

by Sheniqua (Totally not Joe) June 27, 2019

Mos

Abbreviation for the german term"mid oot sond" which means in a movie a scene shot without sound

We shot the laundrymat scene. Mos due to the background noise of dryers and the generator hooked up outside. We'll re loop the dialogue later.

by 4realazitgits April 12, 2021

Mos

Mit out sound

Mos Play that dub. What she on about on that photo. Simpson staffordshire clan mos

by Noelle shaw March 6, 2022

MOS

MOS- an abbreviation for the popular reddit community “made of styrofoam” which share memes and advice concerning self harm

i saw your friends account on MOS are they ok?

by eeriowa December 23, 2022