(idiomatic) The identified person appears to be benign, mild-mannered, or calm (but with an integral suggestion that, to the contrary, he or she really is untrustworthy, disagreeable, or mean-spirited).

plural of mouth harp

Synonym of Jew's harp / (African-American Vernacular) Synonym of harmonica

(informal) bad breath, halitosis

(glassmaking) Blown by an individual using the mouth, rather than bellows or blowpipe.

plural of mouth organist

Someone who plays any of the instruments called a mouth organ (panpipes, Jew's harp, harmonica).

plural of mouth harpist

Someone who plays a mouth harp (either a harmonica or a Jew's harp).

Alternative form of mouth organ