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fumbelievable 

adj.

An exclamation to describe a play in American football that is so unexpectedly botched by one or more players that it results in a cry of outrage from justified fans. Most applicably, a fumble that is recovered by the defense and is ran back for a game-winning touchdown. However, the term can be used to punctuate any heart-wrenchingly sudden event in a game.

Origin: blend of "fumble" and "unbelievable"
"Fumbelievable! We just lost the game because our running back couldn't take a hit and hold onto the ball at the same time."

"Zach Maynard threw another interception? This is fumbelievable!"

disbelievable 

Not credible; warrants non-belief
The idea that Oswald acted alone is disbelievable in the face of Kennedy's actions which upset the Mob and the Cubans.

If you look at the Henne family's background, its disbelievable that the family wasn't perpetrating some sort of hoax.

Shakesphere had only an elementary-school education. It's disbelievable that he wrote Hamlet.
disbelievable by blogmandu October 20, 2009

Humbelievable 

When something is sooo smelly, its humbelievable!

A combination of humming and the smell actually being believable.
Tom: "Pwoooaaar, when did you clean this flat?"
Ben: "Yeah... I have not cleaned it for decades!"
Tom: "It's HUMBELIEVABLE"
Humbelievable by tphere October 7, 2011

umbelievable

umbelievable (adjective) something that falls between true and false, but tends to be somewhat more likely to be true (or believable) than false (or unbelievable); falling in the gray zone between believable and unbelievable, with a nod toward the side of believing; kind of believing with a small hint of doubt
Joe stepped out of the car and said he was late because he’d been robbed by a gunman in a mask. Frank stared at him and said “I find that umbelievable. Please tell me more”, thinking to himself that it could be a lie.

When dad said he held his high school record for the high jump, I told him that was umbelievable and asked him to show me proof someday.

My neighbor said he grew up in and moved here from Hawaii, but I find that umbelievable because of his strong Southern accent.
umbelievable by JohnnyWil2026 September 1, 2026
More from Urban Dictionary
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

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
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