colloquialism

colloquialism
n colloquial word or phrase 口语的词语
    The phrase `on the blink' in the sentence `The radio's on the blink' (ie not working properly) is a colloquialism. 在 The radio's on the blink（收音机坏了）一句中的 on the blink（坏了）这一词组是口语用语.

牛津英汉双解词典