It is an abbreviation of "Sadism and Masochism" which refers to the enjoyment of pain.
"My new boyfriend and I are into S&M ; we use whips and chains when we have sex!"
No, it's not sadomasochism
S&M stands for Stand & Model; some fag bars labelled as S&M bars favour the hottest-looking customers while purposefully ignoring the uglier or older ones.
The Manray in Seattle was an S&M bar -- you had to be at least reasonably attractive in order to get a drink in the joint.
HE DIED, HE DIED MAN. GOOD GUY. HE DIED.
"JOKES ON YOU, HES NOT DEAD. ANDY M IS NOT DEAD" -Me Probably
M- dot tattoo is a tattoo competitors choose to get if they want, after they have completed an iron man triathlon in Hawaii. if you get it before you complete the 1500 entry race your a poser
after i completed the iron man i got this sick M- dot tattoo iron man logo