S & F 

smoke and fuck
smoking weed and then proceeding to have sex

*THC intensifies orgasms and sexual pleasure

My girl and I love to S & F when we have free time on the weekends.

S & F by TgangorD November 21, 2010

S & F 

A Smoke and Fuck...
Smoking a marijuana blunt with a willing partner and immediate sex after the smoking.

I had this lady who worked at McDonald's and she said she was cool with me & her having an S & F...

S & F by " D " November 23, 2016

S/f 

A shorthand salutation used usually to end emails written by United States Marines. Stands for Semper Fidelis (Always Faithful) the USMC motto.

Jones,

Thanks for helpin us out back here. I'll make sure Gunny knows who came through for us.

S/f, Baker

S/f by effshews April 24, 2014

S&F 

Sucking and F*cking.

I was doin' a little S&F last night with my boyfriend, man my @ss hurts!

S&F by masteriwi May 14, 2011

S&F 

Suck & Fuck - used to describe a hot session of sex

Lets do a S&F tonight

S&F by Mike in Vancouver August 10, 2006

s.f. 

sexually frustrated. in desperate need of nookie. WAY past the point of being horny.

"omgggggg, i haven't gotten any in TWO MONTHS i am SOOOO s.f."

s.f. by KELSCULLHAAAI January 21, 2009

S&F 

"Starred and Flagged" - a term used on some forums including ATS (abovetopsecret) to denote an important thread which gets moved up to the top of the list.

This post is such a great find! S&F

S&F by Surferess September 22, 2012