have a cob on
English edit
Alternative forms edit
Etymology edit
Unknown. Perhaps from cob (“male swan”), noted for its ill-temper. Compare have a corncob up one's arse (“to be ill-tempered”).
Verb edit
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)
- (Northern England, Liverpool) to be in a bad mood; be grumpy