to be in a bad temper, to be annoyed; thus cobby adj., angry.
|DSUE 163/2: Have a cob on, to be annoyed: ships' stewards'.|
|Log Book : The boy [...] grinned at his boss and whispered, ‘What’s bit the old man? ’e seems to have a proper cob on this morning’.|
|Lancs. Dialect Soc. Jrnl 1-8 40: The citizens suffer fools (GOMS) g'adlyy enough even when they HAVE A COB ON (carrying a load of annoyance, in a temper) .|
|Guardian 6/12/2021 🌐 I switched off the power, starting with George’s amplifier, just as they [i.e. the Beatles] were about to break into a new number. Then George got a right cob on.Diary 30 Jan. cited in|
|Boys from the Blackstuff (1985) [TV script] 39: I don’t know why Dixie’s got a cob on with us for.‘Jobs for the Boys’ in|
|Stump 73: — Still got a cob on, Da? [...] Da. you still cobby, mate?|