Stands for 'sorry my internet failed' when instant messaging with a friend over the internet. Most commonly used after the user rejoins the conversation, having lost internet connection for a short while beforehand due to their shitty internet service provider.
"how's everything going?"
*other person is offline*
*other person comes back online*
"smif =/"
"it's cool"

or used as a verb:
- my internet smiffed
- i have a feeling i'm going to smif in a moment, my internet's been dodgy all day!
by Fix facebook chat October 17, 2010
Get the smif mug.
Some MALE I Fucked
That was just a SMIF.
by 4FunShowMe October 1, 2015
Get the SMIF mug.
Yo!..That fool tried to yank me so I pulled out the smif' and let off!
by Denman75 July 11, 2008
Get the smif' mug.
1. A firearm, usually semiautomatic. Also can be a pistol.
2. One of the rappers in the rap duo "Smif-n-Wessun", most famous for the song "Bucktown".
Person 1: Man you better be careful in that neighborhood.
Person 2: Don't worry about me, I'm good as long as I got my smif at my side.

Person 1: Rap today sucks, do you know any good rap artists?
Person 2: Yeah man, check out some stuff from smif n wessun, theyre pretty tight.
by Brrrrrrraaaat Young Buck November 8, 2006
Get the smif mug.
S-Stupid
M-Mad
I-Idiot
F-Fool
1.Are you a SMIF?
2.I've never seen a bigger SMIF than you.
by Sanain December 12, 2009
Get the SMIF mug.
to get owned.

usually followed with the word 'shame!'
mr.scott got smiffed last week.
by GEE:) December 2, 2007
Get the smiffed mug.
A rather maths level dedicated to pure retards who struggle to put 2 and 2 together. The class is in the year groups of year 11 and 12. The classes Usually consists of People named mick d and zach hensby.
“ hey Zach we have smifs, let’s not be late as we learning our time stables “
by Stillooo May 27, 2019
Get the Smifs mug.