M.O.S.

man of steel (or 'men')

the 'macho man' who has huge pain tolerance, physically OR emotionally!; ESPECIALLY WHEN DRUNK!!

jack was a true M.O.S.!! he took on some killer bikers and got seriously thrashed, but bounced back like a turd that wouldn't flush!

he didn't know what he was in for challenging those M.O.S.

the special op M.O.S. kept on shooting after losing part of a leg, until he keeled over from blood loss!

by michael foolsley February 12, 2010

M.O.S.

M.O.S.=Member of Society:

someone who works, doesn't live with his parents and has a girlfriend. As well as this he does things regualr people do like go to the gym, wear a suit to work and buys beers in rounds at the pub.

that boy wears a suit to work, he's an M.O.S.

I saw him jogging with his girlfriend, what an M.O.S.

mate he's busy being an M.O.S. he ain't gonna come out.

by Safety190 September 1, 2010

wanna m.o.

To want to make out with someone.

Hey Bobby you wanna m.o.?

by Lisa X. November 14, 2007

M.O.S

Stands for "Manual Orifice Sex". Describes when a man manually cuts a hole in someone and sticks his cock into the hole. This is the fastest way to get HIV.

Guy 1: "Hey dude, did you here about the one guy who killed that girl by M.O.S?"
Guy 2: "No dude I didn't, that is sick."
Guy 1: "Yah well at least he got HIV."

by CommanderEarlRaymondKingston December 20, 2018

M.O

To make out. For the PG audience is to kissy kissy

“Hey Austin, wanna M.O this weekened?”

by SimonJaclyn March 23, 2019

M.O.S

Missing on Snapchat

Lara is M.O.S, she hasn't answered in 30 minutes.

by Kota422 May 13, 2020

[m/m.o ]

It means maybe or maybe not , big brain time confusion

Rogger: hey you know about the brack robbery in town
Jeff: m/m.o

by Junkbag May 17, 2020