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!"

fumbelievable by Definest Youllevermeet December 16, 2011

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

funbelievable 

Short for "fucking unbelievable"

That movie was funbelievable!

funbelievable by name: C. Felix September 2, 2005

Dumbelievable 

When something so dumb happens that you aren't sure if you believe it or not.

"Jason tried to eat the shell of the lobster."

"I thought it'd be like chips."

"That's dumbelievable, Jason."

Dumbelievable by JimmyTheSmack June 2, 2018

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