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1. n. A brand of paint that glows under blacklight. Was popular in the 1960s. Sold in bright, fluorescent colours that have been known to cause partial blindness.
2. adj. A word for any obnoxiously bright colour.
'I saw this guy wearing the most insane pants yesterday...they were DayGlo green...'
'I expect he was on acid.'
DayGlo by Rozeh April 8, 2009
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Dayglo = Northern Scally Chic. The term ‘scally’ was coined originally in Liverpool to group together a certain type of person through their clothes, language and ideals. A dayglo is a southerner, often an ex-chav, who embraces the scally dress code specifically.
Your a dayglo........go away.
dayglo by Suncream July 5, 2005

dayglo abortions 

One of the first Canadian punk bands, starting in 1979 in Victoria, BC. Still tour today all over Canada and get just as crazy, hardcore and drunk as always.
"Hey, I got pissed with the Dayglo Abortions after the show!"
dayglo abortions by Peter K March 16, 2005
Dayglow is an American singer and songwriter based in Aledo, Texas. He's known for his upbeat indie-pop style music.
He released his debut album, Fuzzybrain, in 2018, and his next album, Harmony House, is set to release on May 21st, 2021.
Some people also say Dayglow's a band. The official Dayglow site is "dayglow band" but the Wikipedia page refers to Dayglow as one person, Sloan Struble.
Person A: "Man I love Dayglow!"
Person B: "That guy's music sucks"
Person A: "Fuck you."
Dayglow by pepsitwice March 25, 2021
An amazing type of person who brightens a room and makes everyone around them smile. Manages to make everything they do comical, often at their own expense. Has father-like qualities. The mature one in the group. Often times when trying their best, the end result is failure; but that doesn't stop them from trying again and again. Has separate interests from the rest of his friends, and will stick to those interests out of sheer passion. An all-around good person.
Man, I really like Michael. He's definitely a Dayloon.
Dayloon by Tidal13 June 4, 2018
Daygo: Slang term for "San Diego" and variant term to "Dago." Normally referred to in the context of San Diego's inner-city neighborhoods.
And dem Daygo niggaz know what's up.
Daygo by ShockG40 October 3, 2004
A person with a really big dong
U gave the size of daylon
Daylon by Justin wagers February 5, 2017
More from Urban Dictionary
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
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
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