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a parent that just took part in conception of a child and yet has no contact, part in taking care of or providing for the child what so ever. AKA; deadbeat, low life, scum, pos, loser, worthless, whore, sad, etc.
**My sons donor is a male whore who is also pos.

**Anyone can be a donor it takes someone special to be a daddy!
donor by froggy17 December 3, 2010
A member of a fantasy sports keeper league who never wins money at the end of the season due to his sub-par management ability.
You never win anything in this league. You're a freakin donor!
Donor by Woody Williams May 2, 2011
A person who recklessly rides a powerful motorbike, usually a 1000cc Japanese sportbike with illegal pipes. The characteristic behavior includes wheelies, speeding, burnouts etc illegal activity. The moniker "donor" refers to the fact that the rider is eventually very likely going to donate his (still intact) internal organs after a fatal accident.
Did you see that donor? He almost hit my car!
Donor by MotoKiller April 9, 2019
A donor is a person who likes to drink and smoke pot, or someone who is high and drunk, it is a combination of drunken stoner.
Look at that donor drink vodka when he gets cotton mouth.
Donor by TAB12 December 24, 2009

donor machine 

We've got a victim coming in to Ambulance bay 2 that was riding a donor machine.
donor machine by Orius September 4, 2002

donor boner 

when ur buddy has a chance with a super hot chick BUT she has a fat or ugly friend that will most definately cock block so u have to take one for the team {also known as wingman}.
Jason:yo I got a chance with that hot chick over there but I know her fat friend is gonna cock block me, so I need ur help.
Ed:let me guess u need my donor boner for the fatty.
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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
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