Skip to main content
A flerb is a form of measurement. The equation for flerbs changes daily. They are so many variables in the equation that there is no way for you to figure out what those variables stand for, thus making the measurement useless. The measurement might be useless, but flerbs are vary useful for writing on math tests when you don't know the answer. That number of flerbs might be equal to the answer of the question.
"Today's equation for flerbs is - (a + b) - arc length of semicircle x volume of box."

The variables aren't defined at all. You have no idea what a and b stand for, or what semicircle I'm talking about, or what box I'm talking about.
Flerb by track.fruit22 June 1, 2021
Urban Dictionary Merch
Your favorite words on things you can wear, drink from, read, or give to a friend.
The Urban Dictionary Store sells gifts you’ll have to explain.

Prices in USD. Free US shipping. International shipping and regional book fees are shown before payment.

Hey, how many flerbs are you today?
A feeling of intense excitement, joy and anticipation.
Yo, you feeling flerb?

Yeah, I’m feeling so flerb right now.
Flerb by LemonLimeSorbet January 2, 2023
A gross and terrible guitar sound, formed by combining flanger and reverb effects.
Oh man, she's using flerb? What is wrong with her?
flerb by prototeutonic@gmail.com November 14, 2010
A layer of blubber that provides immense laziness.
The walrus has a small layer of flerb, causing it not to move very often.
Flerb by SpinachCracker January 10, 2022
A sound Batman makes while fighting evildoers
And then Batman was like... "Bang... Pow... Flerb!"
To blow a a fart noise with your mouth on someone's skin.
Things were getting too serious with my girlfriend so I ferberted her belly to make her laugh.
Ferbert by Ferlin September 22, 2012
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
Load more