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fat foil 

An overweight friend exploited by an insecure female to make herself look better in comparison. Said female will often hypocritically gush about the fat foil's "voluptuous" body, intelligence and sense of humor and claim she doesn't get why men don't appreciate her friend's stellar qualities. Needless to say, she will unceremoniously dump the foil if the foil loses weight and becomes even remotely attractive herself.
Megan: Wow, Charlotte looks so curvy in that dress. I don't why guys aren't all over her. You know, she'd be considered beautiful if she lived in Victorian times.

Guy at bar: Yeah, I get it, she's your "fat foil." Can I have your phone number?
fat foil by Sparkler10 September 7, 2010
Related Words

Foilsick 

Feeling ashamed after revealing a little too much of yourself to someone - allowing them to clear a view on your pettiness, your anger, your cowardice and childlike vulnerability - wishing that you didn’t have a deep disdain for who you think you actually are.
Jim- I’m feeling very Foilsick right now.
Bob-why?
Jim-I told this girl about how I’m feeling/my emotions.
Foilsick by Ej<3 January 18, 2022

Tin Foil Garbage Can

A device from Sharper Image that keeps the trash warm so it doesn't get cold and go bad and start to stink.
Tin Foil Garbage Can keeps the trash warm, keeps the garbage good, and keeps the house smelling fresh and not stinking like shit.
Noun: the shiney, floating bits on the surface of an over-brewed cup of tea.
"OH NO! I've got Frillops in my tea again" Said the overzealous Vicar.

Edmond was trying to enjoy his brekkers, but could not get over the annoyance of the frillops in his tea.
Frillop by taffer the frillop October 12, 2011

foilissimo 

Adj.

1. (of a performance) very intensely fah-bulous, usually impromptu, solo piece

Even though it deviates from the planned performance, neither the fellow performers nor the audience/viewers object, because it enhances the original performance.

2. incredibly good, unbelievably good, defies expectations with how fabulous it is, utterly fah-bulous
Christine: That guitar sesh in the outro was foilissimo!
M: Oh you mean how he went off-script when he started jamming with his guitar but it only made the performance more incredible?
Christine: Yes! And also how utterly fah-bulous the actual jam was!
Dona: Foilissimo indeed!
foilissimo by OnlyFAHms April 8, 2021
frillion or f'rillion (fril yen), adj. - 1. A f***ing trillion. 2. A really big number. 3. A quantity so extraordinary as to be considered obscene.

Also - a number with "a lot of zeros".
I can think of a frillion examples.
frillion by kid d December 26, 2007
More from Urban Dictionary
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026

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
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