A phrase/ mental disorder which discribes the social immaturity displayed by women(ages 14-19) with flat chest. It's usually diagnosed by a friend or first time aqaintance who notices certain idiosynchrasies that display annoyance, or in gereral over compensation.
Victims of FCS often display narcissism, or self-centeredness; They often try to compensate by trying to be intellectually superior or catty.
It's often grown out of but the long term effects can only heal with time.
Victims of FCS often display narcissism, or self-centeredness; They often try to compensate by trying to be intellectually superior or catty.
It's often grown out of but the long term effects can only heal with time.
Abel- Dude (girl) is being so annoying
Chelsea- Yeah I know she must have Flat Chest Syndrome(FCS)
Abel- Oh yeah she's deffanently FCS positive.
Chelsea- Yeah I know she must have Flat Chest Syndrome(FCS)
Abel- Oh yeah she's deffanently FCS positive.
by Chabel Roeschstraviz March 26, 2008
Get the Flat Chest Syndrome(FCS)mug. by The Italian-Romanian guy. August 1, 2023
Get the ea sports fc 24mug. by cloudinthesky January 1, 2022
Get the FCmug. Small amateur football club from Merseyside always trying to catch up with their rivals Manchester United. Their support think they are a good team but in reality they have only one the Premier League once. It is unknown where their nick name bin dippers come from but everyone outside of Liverpool calls them that. They have woldwide support and have at least one fan in Canada.
by notascouse March 17, 2023
Get the Liverpool FCmug. A football team which has always and always will be in the shadow of Everton Football Club. Ps. Knock Anfield down x
Random guy : Oh my god, have you heard of Liverpool FC?
Other guy : The club that wish to be Everton so badly?
Random guy : Yeah, that’s the team.
Other guy : The club that wish to be Everton so badly?
Random guy : Yeah, that’s the team.
by yournanstoelicker July 11, 2022
Get the Liverpool FCmug. 
