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Stands for "Retarded Mouth Syndrome". When girls get together to take pictures, instead of smiling, they often resort to retarded ways of forming their mouths. Examples include weird "kissy" faces, random forms of lip distortion, and overall retarded looks on their faces. Unfortunately almost 100% of girls will catch this disease over the course of their lives, just check your facebook friends.
"Dude Stacy is pretty cute."

"Yeah but check out her Myspace, she's got RMS"
"Ah damn, she really did ruin all of these pics."
by Morfene April 19, 2010
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Aug 11 Word of the Day
A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.
"My boyfriend has a total case of brain worms. He told me the cat was bugged so the Feds could listen in on us having sex..."

or

"You totally stumbled over that entire sentence. Can't speak English all of a sudden? What, do you have brain worms?"
by _Jez_ October 03, 2009
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2
(root mean square) Preferred method of rating continuous power handling of a speaker (input) or amplifier (output)usually measured in wattage.
My amp's 1500 watt power was too much for my speakers 2000 watt peak power, becuase the rms was only 500.
by Mike Millie August 29, 2008
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4
meaning Real Massive Shit. To the point your so constipated you can no longer withstand to hold it. Aslo can be identified if you clog the toilet to the point it overflows.
Student: "Excuse me, teacher."
Teacher: "Yes."
Student: "I got to take a huge RMS. May I be excused?"
Teacher: "Of course you can." Just don't strain yourself."
by dj_holydumbf**ck October 18, 2006
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5
the tagging crew in south central los angeles thats taking over crenshaw high school. stands for real madd skills, rebels mobbing society, rollin my stress, rushing main streets, real madd smokers
their go dem niggas from RMS
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6
Abbreviation for "RUB MY SHAFT". Used in replacement of SMD (Suck My Dick).
Guy: hi, do you work at subway?

Girl: no...

Guy: cause you just gave me a footlong

Girl: ew, creep

Guy: RMS!
by stevenbains69 March 21, 2011
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