Dubuffet, Jean Syllabification: (Du·buf·fet, Jean)Pronunciation: /ˌd(y)o͞obəˈfā/Definition of Dubuffet, Jean (1901–85), French painter. He rejected traditional techniques and incorporated materials such as sand and plaster in his paintings and produced sculptures made from garbage. Dubuffet, Jean in other Oxford dictionaries Definition of Dubuffet, Jean in the British & World English dictionary