duff

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Decaying leaves and branches covering a forest floor.
• noun Fine coal; slack.
• noun The buttocks.
• noun A stiff flour pudding boiled in a cloth bag or steamed.

from The Century Dictionary.

• In golf, to miss a stroke by hitting the ground behind the ball.
• noun Dough; paste of bread.
• noun Nautical, a stiff flour pudding boiled in a bag or cloth: as, sailors' plum duff.
• noun Vegetable growth covering forest-ground.
• noun Fine coal.

from the GNU version of the Collaborative International Dictionary of English.

• noun Prov. Eng. Dough or paste.
• noun A stiff flour pudding, boiled in a bag; -- a term used especially by seamen.
• transitive verb To treat or manipulate so as to give a specious appearance to; to fake; hence, to cheat.
• transitive verb In Australia, to alter the brands on (cattle, horses, etc.); to steal (cattle, etc.), and alter their brands.
• noun slang the buttocks.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun dialectal Dough.
• noun A stiff flour pudding, often with dried fruit, boiled in a cloth bag, or steamed
• noun US, slang The buttocks.
• noun Scotland, US Decaying vegetable matter on the forest floor.
• noun Coal dust.
• noun slang The bits left in the bottom of the bag after the booty has been consumed, like crumbs.
• noun Something spurious or fake; a counterfeit, a worthless thing.
• noun baseball, slang, 1800s An error.
• adjective UK Worthless; not working properly, defective.
• verb slang, obsolete To disguise something to make it look new.
• verb Australia To alter the branding of stolen cattle; to steal cattle.
• verb UK, slang To beat (up).
• verb US, golf To hit the ground behind the ball.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a stiff flour pudding steamed or boiled usually and containing e.g. currants and raisins and citron