1)To violently smell, deeply inhale

2)To snort
Everyone thought Julie was weird when we saw her picking up joeys cat and sniffing it.

"Remember that guy we met on the train yesterday? He sniffed me, like, right after you got off. Weirdo."

"Oh yeah man, we sniffed so many lines last night!"
by Rosemary stogner October 27, 2013
Get a sniffing mug for your guy José.
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
Get a SNIF mug for your Facebook friend Sarah.
Sucking, with one's nose, but not like as in 'Timmy, you suck', more as in 'straws suck'. Cannot be done underwater unless you happen to be a water shrew or star-nosed mole.
Sniffing is challenging to do underwater. Lucky us, otherwise we'd be able to smell all the fish.
by Sniffatron 2000 June 25, 2018
Get a Sniffing mug for your Uncle Bob.
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
Get a SNif mug for your cousin Julia.
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
Get a snif mug for your Facebook friend Helena.
When you're high on a drug from sniffing (ie. cocaine/ket/md)
Mate are u sniffed
by Swagkt June 12, 2014
Get a sniffed mug for your brother José.
A kid-friendly term to sensor the word "yiffing." First used by MatPat and Stephanie on GTLive to make Dayshift at Freddy's slightly more appropriate.
Mat: Time to yiff the fox!
Steph: Don't do it, Matthew. No yelling and sniffing of the Foxy allowed.
by PoweredByDietCoke July 22, 2017
Get the yelling and sniffing neck gaiter and mug.