Definitions for blabbermouthˈblæb ərˌmaʊθ; -ˌmaʊðz, -ˌmaʊθs
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Random House Webster's College Dictionary
blab•ber•mouthˈblæb ərˌmaʊθ; -ˌmaʊðz, -ˌmaʊθs(n.)(pl.)-mouths
one who talks too much.
Origin of blabbermouth:
1935–40, Amer.
Princeton's WordNet
tattletale, tattler, taleteller, talebearer, telltale, blabbermouth(noun)
someone who gossips indiscreetly
Wiktionary
blabbermouth(Noun)
a gossip
If it weren't for that blabbermouth Sally, the principal would never have known we did it.
Citation
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