A fork of Rural Dictionary
abbreviation for "not so much"
Girl 1: omg he's cute!!!
Girl 2: ehhh nsm....
NSM is short for "nique sa mère" in french, which means "fuck his mother"
"putin nique ta mère (NSM)"
Friend 1: I can't wait to snort some pepper.
Friend 2: Don't you know it's March?
Freind 1: Why?
Friend 2: NSM