n.s

Nothing serious

Hmu...n.s

N.S.

"Nasal Sex" (verb): having sexual intercourse with a woman, though not through the vagina, but, rather, penetration into the nose. Can be used when describing relations with a friend's mother.

"Yo, what happend to you last night?"
"Dude, I was having N.S. with Vee until about 3am"