hump, humpy
»I’ve got the hump to-night.» (P. Kelver II. 166. 27.)
A business man, former Whitechapel butcher.
»Harris said it would be humpy.» (Three Men In A Boat 8. 4.)
»He criticised it as the humpiest funeral he had ever known.» (Tommy And Co. 74. 4.)
An undertaker.
»That ain’t the sort of thing to be humpy about.» (T. T. T. 156. 20.)
A waiter.
A person, who is disagreeable or in low spirits may be presumed to go with his shoulders humped. Thence we have probably got the term humpy = despondent, hurt, put out[7], or of things: dull, miserable. To get (to have) the humps is probably a later formation and means about the same: to be despondent, to feel melancholy. It is rather common now-a-days in vulgar > coll. language.