v.tr. sl. 1 Brit. Golf mishit (a shot, a ball); bungle. 2 Austral. steal and alter brands on (cattle). øduff up sl. beat; thrash. [perh. back-form. f. DUFFER]
DUFF
Meaning of DUFF in English
English main colloquial, spoken dictionary. Английский основной разговорный словарь. 2012