Green’s Dictionary of Slang

pussbucket n.

also pus pockets
[the use of puss, i.e. pus, may offer a link to other derog. terms relating to venereal diseases]

(orig. US) a general derog. term (cf. pus-bag n.).

[US]J. Wambaugh Glitter Dome (1982) 100: Okay, pus pockets, why don’t you just get over there against the wall?
[US]C. Hiaasen Nature Girl 12: [People] had at various times called him a [...] pussbucket and even a rectal ulcer.