1. Speak (about unimportant matters) rapidly and incessantly
   "The old man gibbered on about the weather";
   - chatter, piffle [informal], palaver [informal], prate, tittle-tattle, twaddle [informal], clack [informal], maunder, prattle, blab [informal], tattle, blabber [informal], gabble, vapour [Brit, Cdn], vapor [US], rabbit [Brit, informal], jibber-jabber, witter [Brit, informal], twattle [UK, dialect], yatter [Brit, informal], yabber [informal]
    
2. Chatter inarticulately; of monkeys
   "The monkeys gibbered excitedly as they swung through the trees"

1. Unintelligible talking
   "The toddler's excited babbling sounded like gibber to the adults";
   - gibberish

Derived forms: gibbers, gibbering, gibbered

Type of: bunk [informal], emit, hokum [informal], let loose, let out, meaninglessness, mouth, nonsense, nonsensicality, speak, talk, utter, verbalise [Brit], verbalize

Encyclopedia: Gibber