noun
a combination of two or more metaphors or idioms that produces a ridiculous effect, for example, 'He put his foot down with a firm hand.'
noun
a combination of two or more metaphors or idioms that produces a ridiculous effect, for example, 'He put his foot down with a firm hand.'
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005