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9. 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.
1. SIF
Secret Internet Fatty.


The SIF is quite adept at hiding his or her fat on the Internet. Usually a LiveJournal or MySpace user, they use Photoshop, high-constrast photos, and strategic camera angles to appear thinner.
Most people on MySpace are sifs.
by indiefocker Jan 23, 2005 add a video
2. sif
acronym for the name secret internet fatty
wow there are a lot of sifs on myspace
by mjisagenius Jul 17, 2005 add a video
3. sif
1. Secret Internet Fatty; 2. Any person who takes flattering photos of themselves to hide their bulging fat rolls and dosn't put up a disclamer to those who seem to be ... interested.
"So I met this girl on myspace right. We talked for weeks and figured it was time to hang out and get a cup of coffee. Oh man, I walked in and took one look at her ... yelled SIF and then promptly left. It was horrid"
4. sif
Secret Internet Fattie

they learn ways to edit pictures of themselves and use angles when taking said pictures to make themselves look thin and hot even though they aren't.
Brookyln beatdown on myspace is a SIF and still won't post pictures to prove she isn't.
5. sif
A shortened version of "as if". Commonly found in online gaming circles.
Sif you know what you're doing, noob.
by Redknob Nov 21, 2002 add a video
6. sif
acronym for: secret internet fatty.
molly: omg that girl is huge!
tina: i saw her pics on myspace, i thot she was skinny!
molly: wow what a sif!
7. 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"
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