fidouchiary duty 

(noun): the moral or ethical duty a woman owes to her significant other to keep her vagina clean and in an appetizing and wholesome condition.

etymology: hybridization of "fiduciary duty", i.e. "the legal duty of one to act in the best interests of another in certain settings", and "douche".

Guy 1: "Brenda's vadge was nasty last night!"

Guy 2: "You should ditch the bitch, man. She violated her fidouchiary duty."

fidouchiary duty by fauxbourdon December 28, 2005

Fedouchiary 

the practice of misleading clients on financial imperatives

You see Micheal Swanswon on C-SPAN. That guy is a marvel of Fedouchiary practice.

Fedouchiary by Goldendouche April 27, 2010

fidouchiary 

The appalling behavior of a douche-bag

Leon: "That mother fucker just cut me off"

Laney: "I know that was some fidouchiary shit"

fidouchiary by PolaroidPrincess September 10, 2011

Fadouchery 

The act of being a fucking douche or agreeing with a fucking douche in-turn committing an act of fadouchery.

1. The most unforgivable act on this earth.

Man 1: Yo, John just fucking cock blocked the shit out of me.

Man 2: Hey, I think it was funny.

Man 1: Yo, you fucking agree with him. Fucking prime example of fadouchery right here.

Fadouchery by Doc. Dre April 11, 2012

Fidouchiary Duty 

The act of being a douche bag for only reasons a douche bag would understand.

When Douche Bags keep it real and uphold their duty to doucheyness

a) "What was up with Tom popping bottles at that open bar event?"
b) "Yes as a douche bag, he was upholding his Fidouchiary Duty."
a) "Well played douche bag, well played..."

Another example:
Putting on jewelry, shiny print clothing, and extra cologne when going to the gym.

Fidouchiary Duty by DMoSlice February 29, 2012

fidouchiary responsibility 

Responsibility to enrich shareholders through human cost savings.

You've done great work here Jimmy and I'm sorry your kid is sick, but I have a fidouchiary responsibility to let you go. The good news is that firing you will 'add value' to shareholders.

fidouchiary responsibility by sweet_thang December 21, 2016