D-Day File 

An off-site file, thumb drive, or backup server with highly sensitive information to be used in the event of litigation, hostile work environment, EEOC claim, termination, a drop-dead-date, deadline or death. Information that is usually used by a whistleblower or other insider to seek justice or self-protection from incrimination by association. Also referred to as plan b, a burn file, or a scorched earth policy.

The Watergate scandal had insider information from Deep Throat. He provided detailed information on corruption within the Presidential Administration.

It is presumed that Lois Lerner, who is seeking immunity, has a D-Day File, now that the IRS has destroyed evidence in the IRS corruption scandal.

D-Day File by Wordsmyter June 26, 2014

D-day capacitor 

Noun. The part of the brain normally only found in female humans though not exclusively, which stores each and every little thing a partner does wrong, which is annoying, etc. Instead of sending the signal "They have done something you do not like. Tell them so they can learn and grow.", this brain centre will store all these incidents. Then, on the day they wish to dump their partner (D-day), this part of the brain will unleash all these stored memories to counteract the guilt caused in the act of dumping.

"And they told me of the time I did the laundry and left a dirty sock in the basket. And the time I asked to live together, and they assumed I meant right now. And one day cleaning the cutlery and pots, I left a fork on the counter, and..."
"Dude! They fully discharged their D-day capacitor on you! I'll never get why people do that instead of telling you right away, so it doesn't eat away at them and allows you to learn from your mistakes."

D-day capacitor by Dirtcreature X1 May 28, 2018

D-Day

A day in which two individuals partake in sexual activity

In other words

D-day: a day to lay down some d

John: wanna chill at the game this friday?
Joe: nah me and my gal gotta d-day on friday

D-Day by HistorySlut666 September 11, 2019

D-Day

Where America soldiers came on to Omaha Beach, while being shot at by Germans on a hill.

D-Day, June 6, 1944 will forever be in our hearts.

D-Day by Orioles123 January 20, 2017

D day 

D day almost like b day but sadder

Fuck hitler how was the person how cuddles d day

D day by Friglicker June 1, 2018

D DAY 

National grab d day

Girl: i wonder if his d is big
Other girl: well you in luck it's national grab d day

D DAY by Nicole746282835473 October 28, 2019

D-Day

When you charge at a girls pussy whilst other man ejaculate towards you and you try to get it in.

"Yeah, we all did the D-Day last night. It was pog."

D-Day by not_imallexxlads January 4, 2021