Stands for facebook&jergens. It's kind of like a peanut butter and jelly, but instead of a sandwich, it's a term used for when you're in the mood to plow and want to bang a specific person but you're held back by relationship commitments so you just look at their most provocative profile pics and please yourself in order to release the urge to take them to pound town. This definition is often used by distraught individuals that have had more than five drinks or have just received a text message from a love interest after they have secured their position in a monogamous relationship.
Bob: I just received a text from Amanda
Theodore: oh man, didn't you always have a thing for her?
Bob: yeah, but I'm in a relationship with chloe
Theodore: are you going to cheat on her
Bob: no, I'm just going to FB&J
FBS is a shortened way of saying fat bit*h syndrome
Oh my god she definitely has FBS look at her
Known as Fucking Bitch Syndrome. A women who hates on another women. In order to feel better about herself or to get the attention of men.
"She was talking shit about you getting that job? Sounds like a case of FBS".
Stands for Fake BPM Syndrome. People that have FBS often think the BPM of a song is much higher than it is. It's especially prominent with people that are often not used to songs higher than 180 BPM and in Camellia's comment section on YouTube.
1: OMG this song is so fast!! It's like 1000000 BPM!!!!
2: dude this song is 205 bpm, i'm taking you to the doctor
Doctor: I'm sorry 1, but you've been diagnosed with FBS.
Abbreviation for "fucking be serious". Used to denote either that it is now time to become serious or that something is meant to be taken literally.
1: Okay, FBS, we really have to get this shit done. No more messing around.
2: Like, FBS, we're in love.
Facebook Spy
An individual that stalks people on facebook. Or noses about on peoples facebook pages, to gossip about it.
I was on some FBS tip, and found out she's pregnant!
Fuck Boy Syndrom (FBS) is typically gotten by those who like many girls at once and have early dementia.