have a cob on

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Alternative forms[edit]


Unknown. Perhaps from cob (male swan), noted for its ill-temper. Compare have a corncob up one's arse (to be ill-tempered).


have a cob on (third-person singular simple present has a cob on, present participle having a cob on, simple past and past participle had a cob on)

  1. (Northern England, Liverpudlian) to be in a bad mood; be grumpy