Word of the day: Yammer

Yammer :  lamento, queixa, choramin­gação, lastimar(-se), lamentar(-se), queixar-se, choramingar, gritar (pássaros)

Synonyms: bellyache, bitch, bleat, carp, caterwaul, crab, croak, fuss, gripe, grizzle, grouch, grouse, growl, grumble, grump, holler, inveigh, keen, kick, kvetch, moan, murmur, mutter, beef

“…customers yammered on for what seemed like days about the billing mistake...” (www.merriam-webster.com)