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in music theory, an interval is the distance between two musical notes.
the interval between c# and f# is a perfect fourth.
interval by advocado_americano August 2, 2026

Interval Sleeping 

When you are extremely stressed for exams and you go to sleep and then wake up and hour or so later and then go to sleep and wake up again etc.
Interval sleeping has been driving me insane because I have to be rested for my exams

Interval Training 

The guilty way of describing the disgusting habit of segment hunting. It’s so disgraceful that no one should ever give kudos
Maz: “you want to go segment hunting?”
AB: “but people will see and get annoyed”
Maz: “we will call it interval training”
AB: “oiling my bike up now”

interval infection 

COVID-19 infection coinciding with a patient's first vaccination and developing prior to receiving the second. The symptoms may easily be misinterpreted as side-effects from the vaccine.
He had felt strange since receiving his first dose of the vaccine - aching, fatigued, coughing, short of breath. Three weeks later, after receiving his second dose, he had a fever of 102, was fighting for breath and coughing badly. While it was logical to assume he was having a severe reaction to the vaccine, the stronger probability was that he had contracted an interval infection.
interval infection by Monkey's Dad February 28, 2021

Interval Oppurtunity Method

allows the user to determine if a python method is correct without running the code. Popularized by super genius SkoiBoi on python 3.9.0
SkoiBoi used the Interval Oppurtunity Methodto win Code Quest 2021

None-Interval 

A word invented by Aiden Kenway, which is the smallest unit of measurement in the digital audio workstation "FL Studio" that you can move MIDI notes in the piano roll. This can also be applied to moving clips in the playlist.

Note: The exact size of a "none-interval" depends on the timebase (PPQ) of the project. For instance, when the timebase of a project is 192, the "none-interval" becomes an even smaller measurement than the standard timebase of 96.

Trivia: A "true none-interval" is the smallest possible none-interval in FL Studio, wherein the timebase (PPQ) of a project is 960, the highest possible timebase currently offered in the DAW. Therefore, a "true none-interval" is the smallest unit of measurement in FL Studio at the highest timebase.
The opening snare sample in Kanye West's "Ni**as In Paris" plays off-beat by 2 none-intervals.
None-Interval by Aidos McLaren March 10, 2022
More from Urban Dictionary

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
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
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