A negative social effect in which a new person in a friend group usually thinks he's friends with the people in the group. And tries his hardest to integrate into their social structure. But the people in the friend group usually treat him as a friend. But in reality, they're doing it not to upset him/her. They usually treat the new person like a dick. Acting nice while also putting him/her in the background.

Usually named so because the new person mostly tends to be fifth one. Most social structures consists out of people in groups of 4.
John: "I asked Kevin if he would want to hang out some time. He said yes but he just straight up ignored me after I tried to ask him when but he ignored me. At the end of it he hung out with another friend and completely ignored me."

Bob: "John, it looks like you have fifth friend syndrome."
by TheSmellyCheeseBoi April 8, 2022
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Hey friend thank you for being there

National friend appreciation day means saying thank you to the one that was there for you
by :) not the one December 1, 2021
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On October 22nd and 24th its hug your friends day! A day where you appreciate your friends. No one is a simp for hugging their mates on this day!!!!
Its Hug Your Friends Day

Ali: can i have a hug? Its Hug Your Friends Day!

Tim: Sure!!!
by David the basilisk October 21, 2020
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Two or more people who bond other the fine delicacy of gravy. e.g KFC gravy
Darren and Tashia became gravy friends after realising their sharing love for KFC gravy with a 10 for £10
by Quirkywords November 5, 2020
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A high pitched noise produced by humans (typically girls) when they have spotted a friend (usually at a bar). The pitch of the squeal is directly proportionate to the amount of alcohol that has been consumed and/or the amount of time that has passed between seeing said friend.
After consuming a number of shots, Nancy let out a friend squeal when she saw her old friend Tammy walk into the bar.
by coleyw November 26, 2017
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A “ friend” that uses you to stay close to an Ex or a “friend” that hangs out with you, but at any chance they get they will, they will ditch you to go relive the relationship that has no hope of ever happening again
Go figure, he texted her, and she left againwithout even saying anything. That bad friend energy is getting old

Did you hear? He just had a baby with another chick, and yet she’s still on that bad friend energy lifestyle. Makes me sick.
by PROB13M December 5, 2022
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U have to give ur male friends a hug as a sign of ur friendship
Girl: “can I hug u? Its give ur male Friends a hug day.”

Guy: “ I guess I have to, I mean it's a national day.”
by Mister ur dad June 10, 2023
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