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delusional 

Believing something to be true that is clearly not. Someone who is not thinking clearly. Used to describe someone attached to an idea which is obviously false.
Jon believes he is always right. He's delusional.
delusional by youreajackass April 16, 2014

Web M.D.-lusional 

adj. The state of being convinced one is suffering from an illness/disorder/etc. much more severe than what one really has based on a Web M.D. diagnosis.
Ty: I researched my symptoms online, and I think I may have a brain tumor.
Cassie: That's Ty; he's Web M.D.-lusional.
Web M.D.-lusional by clarke paley December 4, 2010

Delusional 

When someone clings to the opinions in their head despite the facts. Often times these people do not want to measure the accuracy of their opinions and believe their situation is overly unique.
Tom is delusional, he thinks he is the best parent in the world but his kid is 4 years old and cant spell his own name.
Delusional by Dilemmas.co November 16, 2020

delusionalship 

A one-sided love where you constantly think someone is dropping you hints or has a crush on you whilst it's all in your head (a delusion) and they don't actually care.
"I can't believe I was in a delusionalship with her for so long"
delusionalship by rektx March 6, 2023
im totally lusional
Lusional by marajuanasmoke June 23, 2009

delusional cockbag

A seemingly intelligent individual whose perception of reality (i.e. value as a human being, ability as a parent or child, importance as a social and moral leader, skills as a lover) is so distorted that no amount of logic, reason, or compassionate pleading can sway them from supporting the Bush administration
My dad has become the king of the delusional cockbags without even trying.
delusional cockbag by NumbaOneSon December 15, 2008
More from Urban Dictionary

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
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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