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!"