Fuck a Friend eve 

Fuck-a-Friend Eve is the day before National Fuck a Friend day, widely considered to be April the 9th. On this day, two best friends can prepare themselves for the day to come, possibly by engaging in sexual activities.

"Hey, it's Fuck a Friend Day tomorrow, so that means it's Fuck a Friend Eve today, do you wanna get warmed up?"
"Sure!"

Fuck a Friend eve by schnörniboi05 March 30, 2021

Fuck You Friend Request 

this can be defined as people who have asked to befriend you on a social website like Facebook, Myspace, etc. that you keep there either because you dont particularly like the person or for your own personal amusement or any other reason that pretty much means your not going to accept the request but let them think you will.

That chick i used to like asked me to accept her friend request, she'll be on my "Fuck You Friend Request" page for a long time.
-------------or-------------
I can't believe this dumb bitch is asking to be friends, after the way he fucked me over with that deal... eh, I'll just "Fuck You Friend Request" him.

Fuck You Friend Request by NT3000 (SK) October 1, 2009

National fuck your friend day 

On February 27 you will be able to ask your friend to fuck

Friend 1:it’s national fuck your friend day

Friend 2: wow really wanna fuck

National fuck your friend day by Swavyyythefirst1 February 24, 2021

Fuck your friend’s girl day 

On May 5th we celebrate Fuck your friend’s girl day

On this day we can have sex with our friend’s girlfriends

Hey Rose I know your my friend’s girlfriend but since it’s Fuck your friend’s girl day I think we should have sex!

Fuck your friend’s girl day by Alan Walker doin work April 18, 2022

Good Friend Fuck 

When someone you are close to—or decently close to—needs help out of a relationship with a crazy person.

Jennifer: Carter got engaged to Heather after like three months of dating, and now we’re all worried about him.

Danielle: Well, there’s only one thing you can do.

Jennifer: What?
Danielle: You’re going to have to good friend fuck him.

Good Friend Fuck by livingrachel August 21, 2019

Fuck a Friend Friday 

Celebrated on the Third Friday in June. It is the one day of the year in wich you can hit up a friend you’ve always been attracted to and ask to fuck. This is wothout consequence or messing up relations or friend groups. Totally guilt free friend sex.

Friend 1: hey what’s up wyd tonight

Friend 2: nothin just chillin hbu?

Friend1: tbh nothin. I’ve always wanted to ask you this... wanna fuck?

Friend 2: omg thought you’d never ask. It is Fuck a friend Friday!

Fuck a Friend Friday by PreMalone June 17, 2018

National friend fuck day 

On June 9th, you fuck your boyfriend/girlfriend or ask your crush if they want to fuck. The reason it is on June 9th is because the date resembles 69 as the date is 6/9.

Guy- Hey, Brooke, it's National friend fuck Day, let's bang!
Brooke- Ok!

National friend fuck day by National friend fuck Day May 28, 2018