being sexually frustrated but you're too embarassed to actually say sexually frustrated
by winbon August 8, 2012
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An abbreviation for School Friend. Similar to fake friend. Someone that only wants to be friends at school
Don’t worry about him, he’s only a sf anyway.
by SangerBanger March 5, 2018
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Two letter shorthand for the words "So Fucking." This is used in tandem with an adjective to enhance the meaning of it.
Omg we had pizza from Lombardi's and it was sfgood.

Dude 1: That hot chick was a total bitch
Dude 2: Man, sfstandard
by LordPye November 12, 2009
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1) Symbol For Sex

2) A sex symbol
Guy 1: Damn Sally is so fine she a sfs

Guy 2: A what?

Guy 1: A symbol for sex
by thenumber1word November 6, 2017
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So fuken sexy!!!
Online dating >>> all u say on one line to flirt I'd "SFS!!!"
by Sks sks July 20, 2015
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Sorry For Spam
Abbreviation used in chatting and emailing

Used when you feel compelled to forward a funny email to your friends
SFS. Just had to send this to you.
by hersh_t May 27, 2010
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