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2. Niff
Niff is a street name for poppers.
also used for sniffs,
pass me the niff mate

ive only had 3 niffs
1. niff
Everything and anything and everything inbetween!
I'm just a stupid niff!" "I will niff you." "Get the niff outta hurr." "Niff you n-n-niff you!" "Written in the niffs!" "Niffy niffs!" "Stroke a niff." "Rollin like a big niff.." "MLIN" (MY LIFE IS NIFF
3. Niff
A shortened version of the word "Niggerfaggot"
omfg, you are such a niff

See also pineapple
4. NIFF
Nigga I frequently fuck
Jenni: Isn't that yo boyfriend

Eva: NO! He's just a NIFF
5. niff
an abbreviation for niffler. its derived from the creature in harry potter which sniffs out gold, but it simply means "nothing" or "nevermind." see niffler
Dude 1: what's that your hiding under your bed, d3wd?
Dude 2: niff.
Dude 1: ok, if your sure.
Dude 2: just forget it, man.
6. niff
To sniff and lick at the same time. usually done by a man to a womans vagina.
I want to niff your vagina
7. niff
A word to say when you don't know what else to say, especially when bored.
"niff"
"your a niffpot"
by niffpot Sep 11, 2005 share this add a video