s.i.f. 

secret internet fatty

"she looks hot on myspace, but i heard she's a s.i.f."

s.i.f. by me91 March 8, 2009

S.I.F. 

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.

S.I.F. by Screwed In Fantasy April 8, 2010

S.I.F.B

Should I fall back.

He/Shes’s acting funny, (s.i.f.b) - “should I fall back”

S.I.F.B by keepinyouhipp May 24, 2024

Shit Idiot Brain Fungus (S.I.B.F.)

The Shit Idiot Brain Fungus (or the S.I.B.F. as it is considered in the medical community), is one of the most deadly diseases known to mankind. It strikes at the cerebrum section of the brain and completely shuts it down. This leaves the victim in a state of eternal idiocy and stupidity. This condition affects countless people worldwide, and the symptoms are completely unnoticeable until it is far too late.

This disease was first invented as a bioweapon by Dr. J while he was locked in the basement of 2000 Presidential candidate Alfred Gorestrum (Al Gore). He planned to use this bioweapon on Senator Ted Cruz of Texas in an attempt to make him a raving dumbass. Little did Dr. J know, however, was that Ted Cruz was already the dumbest of raving dumbasses. Unfortunately, the fungus did spread to Ted Cruz and he is now a walking and talking gravemind of the fungus and looks to spread it to all those he comes into contact with and speaks to.

I am writing this definition from my bunker in Southern Kosovo in the hope that some wandering internet-goer finds this and puts an end to the fungus, and Ted Cruz, for once and for all. This is my last message to the world, goodbye.

Person 1: "Yo, you want to hop on the Roblox Pacer Test Game, I really think that it might be a very enjoyable experience."

Person 2: "Bro what the fuck are you saying, have you or a loved one been in contact with a carrier of the Shit Idiot Brain Fungus (S.I.B.F.) or Ted Cruz himself in the past 30 days? You seem like you've come down with a real bad case of it."

Person 1: "Oh no, what if you're rig--- djasdfuiho asdhfgiubsf." *collapses to the floor in a broken heap and as a husk of his former self*

Shit Idiot Brain Fungus (S.I.B.F.) by BizarrePolicy May 4, 2021

S.I.L.F. 

Sandwich I'd Like To Fuck

A Sandwich made so perfectly one would be able to fornicate with previously mentioned sandwich.

"Oh man, that was such a good sandwich I'd basically call that a S.I.L.F."

Guy 1: "dude I just had the best S.I.L.F."
Guy 2: "What?"
Guy 1: "SANDWICH I'D LIKE TO FUCK!"

S.I.L.F. by JoJo Martinez October 1, 2006

S.I.T.F.D. 

Shut it the fuck down

A Code name for when we get tired of doing our job and we need a break we use the term S.I.T.F.D.

S.I.T.F.D. by Ticman October 12, 2011

S.I.L.F. 

1. a Sister I'd Love to Fuck

2. the name for a person's hot sister that you would take pleasure in having sex with.

Bob's sister Allison is a total S.I.L.F.

S.I.L.F. by Joseph Drank June 30, 2006