babbler bab ler n an obnoxious and foolish and loquacious talker n any of various insectivorous Old World birds with a loud incessant song; in some classifications considered members of the family Muscicapidae Usage(s) My secret trip to Moscow in 1972 marked my introduction to the use of the "babbler. The babbler had decided that there was a better future in painting. But no bibble-babbler is Ashurst. Synonym(s) chatterer prater chatterbox magpie spouter cackler