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Bin Effect 

The process by which an eBay seller, after seeing another seller's Buy it Now (BiN) price, lists their own similar item for a higher price.

Responsible for most eBay price inflations and the reselling market in general.
Doesn't have to apply to eBay, can also apply to brick-and-mortar stores and markets.
I can never find deals at pawn shops or thrift stores anymore due to the bin effect.
Bin Effect by Vee Are Trooper March 10, 2014
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The BiEffect 

The BiEffect, similar to the bi-cycle, is a sensation experienced by almost every person who classifies themselves as bisexual. The BiEffect it is where the person has random thoughts / conflicting feelings about their sexuality sometimes feeling that they lean too far on one side of the spectrum to classify as bisexual.
Your suffering from the BiEffect, it’s completely normal and is something almost every bisexual goes through.
The BiEffect by Donmanmdm July 8, 2020
Related Words

Beneffect 

A change which is a result or consequence of an action or other cause due to Ben.
All questions to corporate leadership must be screened by local work leaders. This is a beneffect of the last corporate meeting.
Beneffect by J-BOD November 2, 2023
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
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026
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