gazunder Syllabification: (ga·zund·er)Pronunciation: /gəˈzəndər/Translate gazunder | into Italian Definition of gazunder verb [with object] British (of a buyer) lower the amount of an offer made on a property and accepted by (a seller) at the time of final negotiations. Origin: late 1980s: humorous blend of gazump and undergazunder in other Oxford dictionaries Definition of gazunder in the British & World English dictionary