look up any word, like fleek:
Slight Noise Through Nose

The more appropriate response to some stupid comment, that usually elicits LOL or ROFL as the response. Because most things that people reply to with LOL or ROFL are really not that funny.
abcguy: Hey I saw your friend blow chow at lunch today
rightans: SNTN
by Bow2Dan December 06, 2011