1. the buttocks.
|‘Kiss My Duff’ in Secret Songster 19: I never takes no mummery. / ’Cause I’m a regular – ‘kiss my duff’.|
|‘Rare Old Root’ in Cuckold’s Nest 9: It’s seen many ruffs and pretty white duffs, / And has long been exposed to h-air.|
|‘Nancy Dawson’ in Nancy Dawson’s Cabinet of Songs 11: Her duff she up and down did jerk.|
|‘Last Dying Speech . . . of the Lord Mayor’s Show’ in Curiosities of Street Lit. (1871) 145: And he has broke his sword on the old donkey’s duff.|
|Folk-Phrases of Four Counties 26: To be down on one’s duff. i.e. down on one’s luck; or in the dumps.|
|(con. late 19C) Amer. Madam (1981) 191: There’s nothing we can do, dearie, but sit on our duff and wait.|
|Old Breed 408: Those old buzzards have been sittin’ on their duff at desks!|
|(con. 1950) Band of Brothers 46: How am I gonna get that Congressional sitting on my duff in the CP?|
|At Wit’s End (1979) 206: You’d think some man would get off his duff and give a woman a seat.|
|Straw Boss (1979) 251: I’m not sitting on my duff.|
|Good Words 96: Duff. The ass. One’s rear end.|
|Skinny Dip 240: Sitting on their flabby duffs doing nothing.|
|Bad Sex on Speed 102: Narcolepsy, my fat musty duff [...] They give uis speed cause we’re bored.|
2. the vagina.
|My Secret Life (1966) I 172: Our conversation used to begin by my saying, ‘How’s your duff?’ ‘Oh, nicely, thank you; how is your jock?’ ‘All right and stiff, waiting for your duff.’.|
(US) a male masturbator.
|Amer. Madam (1981) 310: In Washington D.C., there is a law against masturbation that could lead a duff-flogger to a prison term.|
to sit about, to act lazily.
|‘Branded and Roped’ at TaylorGuitars.com [Internet] After he left and we were sure he couldn’t hear us duff around, every Taylor in there was being strummed. We didn’t sound like him.|
1. to shirk, to act lazily.
|Men from the Boys (1967) 115: No wonder you’re fluffing the duff here.|
2. (US gay) to have anal intercourse.
|Gay Sl. Dict. [Internet] anal intercourse: [...] Syn: fluff the duff.|
|(con. 1980s) Skagboys 76: Once ah’ve shot ma duff ower the threadbare broon couch, ah feel a bit low.|