sifness

If something was completely unbelieveable/inconceivable, sometiems someone will exclaim "Sif!", a word used in internet circles. This word could be used when describing the situation of when the exclamation occured.

"The Sifness was so mindblowing, I was like, wow, that frood must be leetzor!"

by KinGAleX March 21, 2005

SIF

Strong Independent Female

- "Whoah, did you see her knock out that 500-lb ex-convict/sexual predator?"

- "Yeah, she's a total SIF."

by ecjs March 10, 2009

SIF

Someone I'd Fuck

Guy 1:Hey your sisters SIF

Guy 2:Man fuck you
Guy 3:He's right she is SIF
Guy 2:Fuck all y'all

by Raw Faith November 6, 2009

SIF

Acronym for Sorry I Farted

A: "SIF!"
B: "oh no not again!"

by EnglishOK November 11, 2019

SIF

Acronym for sister i'd fuck.

hey, what's up sif?

by Chyo Mamma April 9, 2009

SIF

'Smooshed In Face'

Someone who was either born with a 'Smooshed in Face', or had an accident with the baseball resulting in a 'Smooshed in Face'.

A) "Dude, that girl is pretty cute."
B) "What? are you kidding she's a total SIF."

by Strings Jr. September 12, 2009

Sif

An abbriviaton for AS IF, used by smashed crabs and ppl who want to act like smart arse's

Nup sif think your a mass Judd

by Davidos May 14, 2006