Definition of "gibber"

gibber¹

/ˈd͡ʒɪbə(ɹ)/

noun
countable and uncountable, plural gibbers
1. Gibberish, unintelligible speech.
verb
third-person singular simple present gibbers, present participle gibbering, simple past and past participle gibbered
1. To jabber, talk rapidly and unintelligibly or incoherently.

gibber²

/ˈɡɪbə/

noun
plural gibbers
1. (Australia) A stone or rock, of chalcedony or similar mineral, found strewn over arid regions of inland Australia; a gibber stone.
2. (Australia, colloquial) Any small rock or stone, especially one used for throwing.
  Quotations
  “Well, all I can say is that if yer don't take yer dial outer the road I'll bloomin' well take an' bounce a gibber off yer crust.”
  1918, Norman Lindsay, The Magic Pudding, page 90
3. (Australia, obsolete) A large boulder or rocky outcrop; also, an overhanging rock formation.

gibber³

noun
plural gibbers
1. A balky horse.
  Quotations
  A hasty and passionate breaker will often make a really goodtempered young horse an inveterate gibber
  1831-1850, William Youatt, On the Structure and the Diseases of the Horse