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."