yammer

v. complain; complain in a loud voice; scream, shout

Verb
1. cry loudly, as of animals; "The coyotes were howling in the desert"
(synonym) howl, wrawl, yowl
(hypernym) utter, emit, let out, let loose
2. complain whiningly
(synonym) whine, grizzle, yawp
(hypernym) complain, kick, plain, sound off, quetch, kvetch
(verb-group) snivel, whine