D defs.my
Entry 1 sense Webster, 1913

Overlash

· O·ver·lash · IPA /əʊvə(ɹ)ˈlæʃ/
01 v. i. To drive on rashly; to go to excess; hence, to exaggerate; to boast.
  1. 1.
    To drive on rashly; to go to excess; hence, to exaggerate; to boast.[Obs.]