cf 

Short for casual fapping.

It's like foreplay for masturbation. Also done out of boredom sometimes.

cf means casually stroking one's dick without any real intention of reaching climax (yet).

"Yo, what are you doing?"
"I'm bore, so just some cf."

cf by CasualFapper August 22, 2016

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.

CF by Causal fuck February 9, 2017

CF 

Cf is that one person who always manages to get you in trouble. A Cf will stop at nothing untill he/she gets you trouble. A cf loves to harm your social reputation. A cf is commonly known as a snitch or a tattle tale. A Cf is also hated by most parents and all of the teachers. A cf would be like the guy who starts a bar fight and blames it on your sober ass.

Dude that fucking CF got me in trouble again with the teacher.

CF by JamesJDonavan June 8, 2018

CF 

A term that stands for crotch fidgeting, usually used by music teachers. The motion is when you have your hands in front of your crotch and fidget with your hands.

Jack, stop CFing!

CF by cfer123 June 3, 2018

cF 

A word which means anything you want.

Rafiki went to the bar to forget his depression. cF

cF by Rafikiwiki September 24, 2018

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?”

CF by Plentyoffun October 10, 2018

CF 

Short for ClusterFuck.

Wow this traffic is a CF!

CF by caperbot12 January 24, 2020