by JaCrispy423 June 1, 2016

A company goes bankrupt and everyone loses their pensions while the CEO and upper management get million dollar bonuses.
"Yeah, that's how it works, SFD/MFU."
How Tony Soprano describes the mafia. "Shit flows down, money flows up."
"Yeah, that's how it works, SFD/MFU."
How Tony Soprano describes the mafia. "Shit flows down, money flows up."
by beachblanket March 28, 2013

math test:
derivative of sin2x/sin3x = ?
kid 1: i dont want to show the work for this
kid 2: just use the SFD Rule
kid 1: oh! its just 2/3!
derivative of sin2x/sin3x = ?
kid 1: i dont want to show the work for this
kid 2: just use the SFD Rule
kid 1: oh! its just 2/3!
by boyzIImen November 23, 2011

When two people spend a lot of time together and begin to develop feelings for each other. But they actually are just assuming society's view on relationships. That people are suppose to be in pairs. So two good friends think they're in a romantic relationship.
John and Jane are both unemployed, so they have a lot of time to spend together. They start getting feelings that they mistaken as romance. They start really dating, get jobs and realize they were suffering from societal familiarity disorder (SFD)!
by TheGoonies February 7, 2014

by jenoswhore November 29, 2019

Dumb bitch: yeah he cheated on me, but said he didn’t mean it, so I forgave him
Friend: sfd you dumb bitch
Friend: sfd you dumb bitch
by ghost843 September 3, 2019

by 4th Impact 4 LIFE!!!!!!! December 4, 2016
