MSMS is Music Soul Mate Sisters. A msms is som1 who is usually 1 of ur best friends. they know and love all the music or almost all the music u do. msm is a music soul mate and they r usually som1 u wouldnt mind dating and they also hav they same taste in music as u. A msms is a friend 4 life.
Cidny 2 Cathy "Tina and Nikki have identical i-pods!"
Tina and Nikki at the same time "well duh we're MSMS"
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