Duffing

[duhf] /dʌf/

verb (used with object), Slang.
1.
to give a deliberately deceptive appearance to; misrepresent; fake.
2.
British. (in golf) to misplay (a golf ball), especially to misjudge one’s swing so that the club strikes the ground behind the ball before hitting it.
3.
Australian.

4.
to cheat someone.
/dʌf/
noun
1.
a thick flour pudding, often flavoured with currants, citron, etc, and boiled in a cloth bag: plum duff
2.
(slang) up the duff, pregnant
/dʌf/
verb (transitive)
1.
(slang) to change the appearance of or give a false appearance to (old or stolen goods); fake
2.
(Austral, slang) to steal (cattle), altering the brand
3.
(golf, informal) Also sclaff. to bungle (a shot) by hitting the ground behind the ball
adjective
4.
(Brit, informal) bad or useless, as by not working out or operating correctly; dud: a duff idea, a duff engine
/dʌf/
noun
1.
(slang) the rump or buttocks
n.

“buttocks, rump,” 1830s, of unknown origin.

noun

The buttocks; rump; ass: A bunch of lazy guys sitting around on our duffs

[1830s+; origin uncertain; perhaps black slang for fud, ”buttocks,” attested by 1785; perhaps fr duff, ”a (sailors’) pudding boiled in a bag,” which bag may have suggested a human fundament in shape; in this sense duff is a Northern pronunciation of dough]