a period of drinking a lot of alcohol or taking a lot of drugs (一段时间)狂饮作乐,大量吸毒 to go on a bender 纵酒作乐
Oxford Collocations DictionaryBender is used after these nouns:- fender
Word Originlate 15th cent. (denoting instruments such as pliers, for bending things): from bend + -er.