maggoty

adjective3

1. •
   Infested with or partially eaten by maggots; flyblown.
2. •
   (offensive, figurative) Unpleasant or bad-tempered.

   • I want you to know that I think you are a maggoty mother-fucking son of a bitch — 1975
3. •
   (figurative, old-fashioned) Full of whims; capricious; freakish.