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3.
When a women sneezes and quifs at the same time.
I think that girl just snifed.

"I think I just snifed"
by BabyFarts March 18, 2009
 
1.
Simlar to TGIF, but pronounced "sniff". Refers to the phrase made popular by the movie "Friday", standing for "Shit Nigga I'ts Friday!"
Person 1: "What day is it today?"

Person 2: "Aw, snif!"
by vfproductions March 03, 2007
 
2.
An acronym used to describe a male that someone may have sexual relations with but not a serious relationship. Some Nigga I Fuck!
Aww girl, that aint my man, he's just my SNIF.
by Sweetjasi November 28, 2010