Dough or paste. A stiff flour pudding, boiled in a bag; -- a term used especially by seamen; as, plum duff.
Dough. A stiff flour pudding, often with dried fruit, boiled in a cloth bag, or steamed. A pudding-style dessert, especially one made with plums. Decaying vegetable matter on the forest floor. Coal dust, especially that left after screening or combined with other small, unsaleable bits of coal. Fine and dry coal in small pieces, usually anthracite. A mixture of coal and rock. The bits left in the bottom of the bag after the booty has been consumed, like crumbs. Something spurious or fake; a counterfeit, a worthless thing. (1800s) An error. The buttocks. A large frame drum, resembling a tambourine, used to accompany popular and classical music in the Middle East.
To disguise something to make it look new. To alter the branding of stolen cattle; to steal cattle. (with "up") To beat up. To hit the ground behind the ball.
Bum
Worthless; not working properly, defective.