In football, an abbreviation for a lost fumble on a kickoff return, or kick return fumble. This is the deadliest of all turnovers in football because the team that loses the fumble is giving the ball back right after allowing a score. The recovering team usually gets great field position, while the team that gave up the football has to put its tired defense back on the field.
Following the Westbrook touchdown, the Giants committed a krumble, giving the Eagles the ball in New York territory with a great opportunity to score again.
by Devveyovich December 29, 2010
adj. Crumbly with a K. a description of a person, place, or thing that isn't pleasant nor funny. what crumbly is but to a harsher degree. Fucked up
"I heard that fool goosed his sister, now that's Krumbly"
"I didn't know he was Krumbly like that"
"You are Krumbly, w/ a capital K"
"I didn't know he was Krumbly like that"
"You are Krumbly, w/ a capital K"
by krumbly May 10, 2007