friendaversary 

The aniversary of being friends with a person.

NOTE: This only works if you remember the exact date you met

Rosalie: Ohmigosh!!!
Alice: What???
Rosalie: What day is it??
Alice: The nineth, why?
Rosalie: It's our friendaversary!!! We have known eachother for one year today!!!!

friendaversary by Pointeshoejen May 9, 2009

Friendaversary 

A long lasting friendship between two friends on the day they met. It is like an anniversary, but you add the word friend to it.

Friend #1: hey guess what it is our friendaversary.
Friend #2: cool so do you want a picnic at my house, or we could go see a movie.

Friendaversary by Harmon queen B January 13, 2017

friendaversary 

The anniversary of your FWB dynamic

Tomorrow is our 2nd friendaversary.

friendaversary by MizGided July 25, 2022

Friendiversary

An annual occasion where you celebrate the passing of one or more years since you met a particular friend.

Dude, it's the 23rd of July!! Exactly 6 years since we met!!

Yeah Brosef, Happy Friendiversary.

Friendiversary by Gashtacular March 3, 2008

Frieniversary 

The anniversary of the day two people met and became friends.

Jenny and I met two years ago today and have been best friends ever since. It's our frieniversary.

Frieniversary by 47poptarts August 29, 2009

Friendversary 

Much like Anniversary, only with how long you've known a friend.

Person A: "Come next month, I'll have known Person C for a year."
Person B: "Happy Friendversary!"
Person A: "Thanks!"

Friendversary by SharpX May 22, 2009

best friend-aversary 

The celebration of your friendship with your best friend.

May 18th is Kay and Amber's best friend-aversary.

best friend-aversary by Walter Elizabeth October 27, 2012