To break into crumbs.
To fall apart; to disintegrate.
To mix (ingredients such as flour and butter) in such a way as to form crumbs.
A dessert of British origin containing stewed fruit topped with a crumbly mixture of fat, flour, and sugar.
To bring back into the mouth and chew a second time.
The portion of food which is brought back into the mouth by ruminating animals from their first stomach, to be chewed a second time.