I suppose crabbit is just a Scottish version of the English word “crabbed”, but you never really here people using that word. But crabbit is a favourite descriptive word in Scotland and it just means bad tempered or grumpy.
When I was young it always seemed to be old people who were crabbit, or should I say – people of a certain age – and no I don’t think I’ve quite reached the crabbit stage yet.
“Crabbit auld bugger” is a well known phrase, but sometimes it’s hard to figure out who is the most crabbit between the describer and the described!