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Short for 5G UltraCapacity.
This icon will show on your T-Mobile/Sprint 5G device running Android 12+/iOS 15+ when you connect to T-Mobile's 5G UltraCapacity network. The bands you'll see labeled under the 5G UC branding is: 5G n41 (2.5GHz MidBand), 5G n260 (39GHz mmWave), and n261 (28GHz mmWave). n77, and other mmWave bands are to come in End of 2022 or over.
With 5G UC, you may experience speeds up to 1.8Gbps (MidBand) and over 3Gbps with mmWave. You may also notice reduced latency (Ping) and will be able to stream high definition video and sound much more fluidly, with less buffer time.
A1: Look at my Speedtest on 5G UC, I got 880Mbps download, 115Mbps Upload, with a 15ms Ping, 2ms Jitter, and no PacketLoss!
A2: Cool, I don't care. But in reality, I'm jealous
A1: S u r e
A2: ...
5G UC by LxT 74 May 18, 2022
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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
Related Words

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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