SIF 

a short term for silly ignorant fag

jamie: yo adam that ambers being a ryt SIF
adam: ye man i agree what a SIF

SIF by jamie the Great May 25, 2007

sif 

a slow person, some one who takes their time doing every thing.

omg your such a sif, hurry up

sif by amber1234 October 29, 2012

SIF 

Small . Intelligent . Friend

Have you met my sister? She's such a SIF

SIF by life1998 May 14, 2015

Sif 

Short for specialist in failure

Boy1: this is the 4th test I've flunked

Boy2: you're such a sif

Sif by UrbanDictionary442 July 31, 2016

SIF 

Acronym of "Sorry I farted!"
usually used among Westcoast US

"SIF"
"Oh No! not again please"

SIF by EnglishOK October 14, 2019

SIF 

Sorry I farted

"SIF!"
"Oh No!"

SIF by HELLOREGON November 11, 2019

SIF 

You can use this saying that person or you is flat SIF stands for Sophia is flat. (don’t worry i’m talking about myself😉)

SIF fr!🤢

SIF by sxophie November 22, 2019