Friendervention 

Friendervention (Noun): A friend intervention. To interfere with the formation or continuation of a friend's friendship with you, or the friendship of a friend with another friend that has been determined to be detrimental to some or all of the parties involved. (Verb: Friendervene)

Amanda staged the friendervention to help prevent Mikela from being sucked into Jenny's black vortex.

Friendervention by JLKRed September 1, 2009

Friends 

people who are there to make you wet yourself at the strangest moments, preferably someplace awkward.

Me: *something funny*
You: *wets pants from laughing too hard*
Stranger: they must be best friends.

Friends by yourninjamaster June 18, 2010

Friends with Fits 

Similar to the more common "friends with benefits" expression, but the participants engage only in "clothes-on" acts, e.g. light making out, cuddling, and extreme cuddling.

"Damn, man! You got Janine to agree to be friends with benefits?"

"Nah, dude. We're just friends with fits."

Friends with Fits by O'Heineys Slang Police January 25, 2012

Friendly Mouth Hug 

a.k.a. the FMH

A nicer way of describing a blow job in order to tell the younger generation not to actually blow into a penis.

E.g. I remember my first Friendly Mouth Hug when I was 12.

Friendly Mouth Hug by jewtang May 30, 2013

friendtrip

When a friend takes you on a journey, literal, mental, or otherwise, and you see new worlds that strengthens your friendship and life.

See also, LSD.

Rebecca: "I just took you on a friendtrip."

Peter: "Wow!"

friendtrip by Metrostars November 26, 2013

Friends Syndrome

When you constantly clap the Friends clapping bit whenever someone says friends

John: Why does he keep clapping when i say friends
Steve: *clap clap clap clap*
Wick: I think he has Friends Syndrome

Friends Syndrome by TheRokt June 2, 2017

Friendless 

People who don't have friends

Hey Adriel! Where are your friends? Oh wait, you're friendless

Friendless by Iwillrektyourass October 22, 2018