1. (C15 Blabberen, probably of imitative origin) Diccionario de inglés definición . blabber 1 n busybody, gossip, informer, rumour-monger, scandalmonger, talebearer, tattler, telltale 2 vb blather, blether (Scot.) chatter, gab (informal) jabber, prattle, run off at the mouth …