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Fail-Safe 

The greatest film in history. "Fail-Safe" was a perfect production crossed with an ultimate cast. Made in 1964 it may have saved the planet. It showed what might happen if the "nuke 'em' system" fucked-up. Fail-Safe sobered its audiences. It made the world more "nuclear smart." Writers Burdick and Heller haunted the world with their view of a possibly tragic future.
You're the president of the United States. Your bombers have "blown past" their "fail-safe points" in a tragic error. As you and your translator "sweat blood," end of the world destiny unfolds right before your very eyes in "Fail-Safe."

Fail-safe 

1. Incorporating a feature to a product, when a malfunction occurs, capable of returning to a working state automatically.
2. Guaranteed to work, reliable.
"We've made it fail-safe by adding a extra NiCad battery incase the main battery fails."
"This recipe is fail-safe, anyone could do it."
Fail-safe by sigridda April 30, 2023

safety fail 

To "safety fail" is to intentionally fail or fail to complete a major assignment or test in a given class because (according to calculations) it is impossible for the assignment to cause one's overall grade in the class to drop by a letter or have any significant changes
Sarah: Hey what are did you write about on the essay for the final in English?

Chris: Haha I didn't...I took a nap. I had over a 100% in that class so it wouldn't have changed my grade. I might as well have safety failed it.

Failsafe 

To avoid, at all cost, any situation that might remotely result in a failure on your, and your liabilities, part.
Example 1:

Stan: "Hey man, let's go to the mall, I want to get something to eat."

Sami: "Nah man, you're only hungry because you have post-high munchies. We should wait at my house before we go out anywhere. Plus, I have some Doritos at home you can munch on."

Stan: "Sweet, failsafe."

Example 2:

Sami: "Hey Charlie, can me and my girlfriend skip school at your house?"

Charlie: "Sure, but you'll have to leave before 12, my mother might come home early for lunch. Gotta be failsafe man."

Sami: "Word!"
Failsafe by Sami Philadelphia October 6, 2009

Failsafe 

When you can’t maintain erection due to a condom
It was ABOUT to happen but everything went failsafe when she made me jimmy up
Failsafe by Baldy Solo October 12, 2018

Failsafe 

Totally cool internet guy. He's from Australia
Failsafe rules!
Failsafe by Failsafe April 8, 2004
More from Urban Dictionary

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
NYC people who migrate north to Quahog, RI to see the leaves in the fall.
New York and everyone from there can fornicate themselves with an iron stick.
leafers by ss++ February 8, 2005
Word of the Day on September 27, 2026
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