In military terms short for "main supply route"
Convoy coming straight up the MSR
by 333HalfEvil March 31, 2013
Top Definition
An alphabetistic acronym (pronounced as letters not one words) short for Mulder/Scully Romance. Used by X-Philes (fans of the show The X-Files) do referance a relationship between the two main characters of the of the show. For the first six or seven series the term was used mainly in fanfiction, fan music videos, and discussions online, as the relationship on the show was displayed as mostly platonic or non-sexual, but in the later series it could be applied to the actual relationship on the show, as well.

Cf. DRR, shipper, noromo.
1. I wrote a new X-Files fanfic today, it's heavy on the MSR.

2. If Mulder and Scully get it together it'll ruin the show- say no to MSR!

3. The MSR is an ideal example of a friendship destined for more.
by Aoife303 November 21, 2006
Monogamous sexual relationship. Take a relationship, then take away all the nagging, complaining about you not washing dishes, and so on, leaving only the mutual sexual enjoyment of one another. Similar to fuck buddies, but with the limitation to just being able to fuck that specific person.
I'm not really looking for a ltr (long term relationship), but a msr, would suit my needs perfectly.

We met up, and screwed like mice all night, she couldn't get enough, so I offered to be in a msr; now, I have all the fun of a relationship, without any hassle.
by BabYMystiQ August 26, 2014
Pronounced Masr and written in Arabic as مصر , it is the Arabic word for Egypt. Msr is often referred to as Umm Al Donya, or Mother of the World, as it was one of the first recorded civilizations. Msr is home to the Nile, Pyramids, and many wonderful people. The Official language of Msr is Arabic, and the official religion is Islam.
I live in Alskandriya, Msr. (Alexandria, Egypt.)
by Ellio101 October 08, 2011
Acronym: Stands for Management Spunk Receptacle.

Often a young eagar to please employee offering the management sexual favours in order to gain early advancement within the company, often to the dismay of competant members of staff. This employee will often get no further than a different managers bedroom.

will be riddled with clap and other such diseases.

Like a WAG but with less class.
Claire decided that she wanted advancement in the company and shagged her way to the top. Hence becoming an MSR.
by eltykieo July 19, 2010
Mad Sober Rage.
Opposite of MDR, a state of sobriety in which yelling, cursing, hitting, and throwing objects occurs for no apparent reason.

Often referred to as MSRing or MSR'd
" I just MSR'd on my professor for giving me a D on that exam"

"Tom Cruise needs to stop MSRing on talk show hosts' couches"

"Don't MSR on the toilet seat, Bob. I'm tired of cleaning up after you."
by MDR3 November 28, 2010
Mother Seton Regional High School.
Msr is a short way to say "Mother Seton Regional"

Its also an easier way to save 7 seconds of your life.
"Hey, do you go to msr?"
by Steph October 29, 2004
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