1 noun informal, pejorative talkative personclabaire masc c m uglagaire masc c m ubéalastán masc c m uplobaire masc4 c m utell that blabbermouth to shut up!abair leis an gclabaire sin bheith ina thost!2 noun informal, pejorative indiscreet personclabaire masc c m uplobaire masc4 c m uglagaire masc c m uduine béalscaoilteshe's too much of a blabbermouthtá béal mór uirthi, tá sí ró-bhéalscaoilte