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Australian term meaning a bad shag/f*ck. The word can be either used to describe the act itself or the person.
person 1: 'What happened last night round Brad's house then? Did you sleep over?'
person 2: 'Yeah'
person 1: 'Well, what happened?! was he any good?'
person 2: 'Not as great as i thought, he's/it was such a dud bash!'
by kayleigh724 June 20, 2009
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