fomosu 

Fear Of Missing Out on Something Unknown. A specific type of FOMO. Unlike general FOMO, FOMOSU is when you feel FOMO but you don't know why.

Guy 1: hey man, how’s life?
Guy 2: idk, i just feel like something is missing...
Guy 1: bro, sounds like you have FOMOSU

fomosu by TheDawgPound94 August 30, 2019

Fomosexual 

Someone who is promiscuous due to a "Fear of Missing Out" on sexual activities.

You can get so and so to do anything in bed. She's a real fomosexual.

Fomosexual by chaingrabber March 21, 2017

Foosum 

Dirty, rotten, lacking in hygeine

He's a foosum bastard

Foosum by Andrew De Moray January 8, 2023

fomous 

meaning faux-mous, fake famous!
like when someone goes i have a friend who's aunt's boyfriend's mother knows kirsten dunst.
or when the daughter/son/ relative of a famous person acts as if they are famous.

Yeah, she doesn't really know kirsten dunst, she's just a fomous bitch

fomous by Ruthie D December 13, 2004

Fomosexual 

Fear of missing out on sex.

Timmy was excited Diana was coming over and being a fomosexual, he made sure to buy a condom.

Fomosexual by Octajohn November 11, 2017

Fomosexual 

The term given to a person who suffers from FOMO (Fear Of Missing Out)

"Little Jimmy never misses a party, even when he's not in the mood, what a blatant FOMOsexual"

Fomosexual by Nicky T, self confessed FOMO June 19, 2009

Foosus 

The deity that watches over the game of foosball.

Give thanks to Foosus because he forgives your spins.

Foosus by JorshM October 22, 2008