blab

 
Pronunciation: /blab/

verb (blabs, blabbing, blabbed)

[no object] informal
  • reveal secrets by indiscreet talk: she blabbed to the press [with object]: there’s no need to blab the whole story
  • talk foolishly or mindlessly: they blab on about responsibility

noun

  • a person who blabs: Sam should not have gone soft on a blab who squealed

Origin:

Middle English (as a noun): probably of Germanic origin; ultimately imitative