Definition of flannelmouth in English:

flannelmouth

Line breaks: flannel|mouth
Pronunciation: /ˈflan(ə)lmaʊθ/

noun

North American informal
A person who talks too much, especially in a boastful or deceitful way.

Definition of flannelmouth in:

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Word of the day animalcule
Pronunciation: ˌanɪˈmalkjuːl
noun
a microscopic animal