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blacklight party 

a party in which all normal white lightbulbs are replaced with blacklight lightbulbs. all guests should wear fluorescent clothing (mostly white) that will glow in the blacklight. also, bring lots of highlighter to draw on one another since the ink glows in the light.
"i have to go shopping for the blacklight party tonight! gotta get something fluorescent."
"dude, last night i got wasted and passed out at the blacklight party. when i woke up, i was covered in glowing highlighter."

Blacklight Barbie 

A woman who appears much prettier in the blacklight at a party/club than she really is.
"After having seen Whitney in the Daylight, I realized shewas a total blacklight barbie."
Blacklight Barbie by DB January 13, 2005

blacklight 

To hit a dab pen or other vaping device until the device stops and the light turns off (hence the name)
"Alex blacklighted my pen now he can't walk"
blacklight by Cantaloup3 December 22, 2020

UV_BlackLight

An insult used against people who have never played Lego Indiana Jones.
Hey! I heard that john hasn't played Lego Indiana Jones.

Really? God I hate anyone who hasn't played Lego Indiana Jones, I bet he's such a UV_BlackLight.
UV_BlackLight by spaetzleking January 6, 2021

blacklight tattoo 

A blacklight tattoo is a tattoo that is done in uv reactive ink. If the entire tattoo is done in uv ink it is not visible under normal light and is only visible when displayed under a blacklight. Another use for the ink is to highlight existing tattoos and to have effects such as causing the eyes of a dragon tattoo to glow under black light. The ink is only visible on lighter skin tones. And although certain manufacturers of the ink have been accused of peddling carcinogen laced ink, one brand name has remained unscathed. Chameleon Ink produces the only FDA approved tattoo ink in the industry.
"Yo, I was clubbing and saw this girl's back glowing... I think she had one of those blacklight tattoos."
blacklight tattoo by lapyramid March 11, 2007

blacklight 

(noun) Common term used for a UV (UltraViolet) light/light bulb. Used in CSI often to find a semen samples.
possible semen sample plus a blacklight situation:

Officer Michaels: "I often go to sleep and dream of waking up in a world where everything's covered in semen."
Officer Slater: "I mean, who doesn't ?"
Officer Michaels: "It'd be nice. Like that crime scene today."
Officer Slater: "Yeah."
Officer Michaels: "If the man had ejaculated and then punched you in the face..."
Officer Slater: "Yeah."
Officer Michaels: "...we'd have a real good shot at catching him."
Officer Slater: "No way."
Officer Michaels: "Just punched in the face, no semen."
Officer Slater: "Yeah, no semen."
Officer Michaels: "Story of my life."
blacklight by THC420 December 2, 2009
More from Urban Dictionary
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009

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

Respectfully 

Precedes or follows either a gratuitously disrespectful or honest remark, originated in New York City. Used in similar fashion to "no offense" or "to be honest," interchangeably.
Ya mans is wild buns, respectfully. Respectfully he's washed.

After school, The Modells on Jamaica Ave was active. Respectfully.
Respectfully by john quan the first December 20, 2020
Word of the Day on September 26, 2026

You met me at a very Chinese time in my life

A moment in time where you feel distinctly Chinese over all other things.
Dante: "I wish I could be Nigerian, but I can't because I'm Chinese. You met me at a very Chinese time in my life."
Word of the Day on September 25, 2026
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