sif
means 'as if' in the land of aussies (or mostly)
A - 'did you know that i wont $100000 last night?'

B - 'like sif'

by hateschem March 15, 2009

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sif
Short for "as if"

Internet slang, used lots in chat of online computer games. Some people also say it in real life now.
Some noob says: "sif you just killed me with a hs, i was behind the wall"
by zOOyOrK1.5 March 18, 2009

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secret internet fatty
"she looks hot on myspace, but i heard she's a s.i.f."
by me91 October 28, 2008

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SIF
Secret-Internet-Fatty

Usually people who are online like on myspace or facebook or stickam cough-rachelmuffin-cough try to look skinny in pictures by doing hours of photoshop and cropping just to hide all that fat. And usually sits on cam like a dead ghost just so they dont show a roll of fat. Usually SIFs are internet zombies and spend all there time trying to look good for the internets so they can hypnotize them into thinking they are some hot 6 pack surfer dude or some big boobed emo/scene chick.
Rachel muffin sits on stickam all day as a SIF trying to get scene guys by trying to look cute and flaunting those fat breasts. And big breasts have a different meaning between fat breasts because fat breasts consists of all the stored fat from food like mcdonalds,wendys,burger king and the lack of excercise.
by MikeLitoris/MLM September 02, 2010

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Screwed In Fantasy. The act of being screwed in a fantasy sport by a fantasy sports player. Then, going to screwedinfantasy.com and posting to make sure that all of your friends and foes read about it.

How you can get screwed: Your fantasy catcher gets benched on Sunday and you lose by one hit, giving your nemesis the week's victory. Your top notch wide receiver doesn't grab a catch on Sunday, costing you a valuable 10-15 fantasy points. Your favorite basketball player steps on someone's foot and is out for 4-6 weeks. Your fantasy hockey player misses the game winning shot, and your chance at a fantasy championship.

The list goes on and on.
I took Joe Nathan in the 10th round of the draft after two other closers went, knowing Nathan was a guaranteed 40+ saves a year. One week later he goes under Tommy John surgery and I'm out of a player and a solid draft pick. You really S.I.F.'ed me on this one Nathan.
by Screwed In Fantasy April 02, 2010

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Sif
To be be stupid or dumb
That car is sif as f*ck
by Rubberducky12345 January 04, 2017

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SIF
Small . Intelligent . Friend
Have you met my sister? She's such a SIF
by life1998 May 14, 2015

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