bit hand that feeds you (verb) betray: be disloyal
Sinonime: calumniating, castigating, censorious, contumelious, defamatory,
derisive, disparaging,
insolent,
insulting,
invective, libelous, maligning, obloquious,
offensive,
opprobrious, reproachful, reviling,
rude,
sarcastic, scathing, scolding,
scurrilous, sharp-tongued, slanderous, traducing, upbraiding, vilifying, vituperative
Antonime: complimentary,
kind,
respectful