CF

Casual Fuck. Different to Friends with Befinfits as you are not friends but are classified as acquaintances that's fuck on a casual basis.

I really need a CF.

by Causal fuck February 9, 2017

CFS (Chicago Fan Syndrome)

When you have the irrational belief that you home team with be victorious despite all the bad decisions they make.

DaBears were down by 21 with under 2 minutes to go but my CFS (Chicago Fan Syndrome) knew they would somehow pull off the win.

by MoreDumbStuff November 15, 2020

CF

Classic Fuckboy...

Quite self-explanatory

Me: “Hey, how coincidental is it the fact that my ex, who’s initials are CF, is, in fact, a CF?”

by Plentyoffun October 10, 2018

CFS

“CFS” Common Fucking Sense

No I can’t wear a mask in the store. I’m exempt. I suffer from CFS.

by Patriot Plumber April 12, 2021

CF

C- close

F- friends
being on someone’s close friends story is an HONOUR that you should never take for granted. by that i mean REPLY TO THEIR STORIES OKAY INTERACT!!

“yo mia added me to her cf”
“dude swipe up you could be the only one on it”

by stitchedballs May 2, 2022

CF

Child Free

My CF boyfriend broke up with me when I told him about my kids.

by Kentagram August 20, 2025

Lollygagging CFS style

a person who dawdles or fools around and drags
things out, usually from California

RTA aka "Lollygagging CFS style" has a bad habit of lollygagging around instead of getting things done in a timely manner.
"Ron, quit lollygagging!!!"

by David J Lott March 13, 2010