Friend Sponge 

Someone who can't make or keep their own friends for very long, and therefore rely on taking friends from the only people they know and making connections with them before taking out the person who introduced them in the first place.

When your cousin/sibling becomes a friend sponge and soaks up your friends like they've known each other for years when you only introduced them at that party last Saturday.

Friend Sponge by theduckie13 January 11, 2010

Friend Loop 

The common phenomenon of discovering a chain of Facebook friends that starts with you and moves through strangers' friends lists that then loop back to you again.
Reinforces the "small world" feeling.

My co-worker wanted me to cross-friend his disc-golf buddy. Found out that he is friends with someone that is also friends with my wife's best friend in college. He started a Friend Loop

Friend Loop by jeffowski July 2, 2011

Friend Breaker Games 

Usually mario style four player games fall into this category. Basically it means a videogame where you can usually screw over your friends by killing them or getting a large amount of points in a short time.

Regis- "This why I don't play with you guys when it comes to these friend breaker games." As she watched tom playing as mario throw her character off a cliff before the finish line.

Tom- "These things things just happen you know. And I owe you for using me as a jump platform to escape the lava.

Friend Breaker Games by Hourglass Mage July 11, 2011

friend creep 

When an ex or current partner begins adding your social media friends to their account without your knowledge.

Lori is again on her mission of friend creep. This past week she has added 10 of my friends on different social media sites.

friend creep by Mr. Creston August 31, 2013

Friend Genda 

When you make plans with your bestie you don't have an agenda but a Friend Genda!

"Ian and Erin make plans to meet during the day so inquire "What's on the Friend Genda?"

Friend Genda by Vodka Milk May 29, 2014

Friend Roofie 

Too add more alcohol to a friend's drink, when they're not looking.

Guys, Anne isn't looking! Friend roofie her drink!

Friend Roofie by Vegasryn September 13, 2014

friend grazing 

to shave the pubes off of somebody you like to show friendship and bonding.

daniel is friend grazing Adam to show their bond.

friend grazing by Daniel Einarsson December 15, 2014