gab, gob
GAB, or GOB. The mouth. Gift of the gab; a facility of speech, nimble tongued eloquence. To blow the gab; to confess, or peach.
GIFT OF THE GAB. A facility of speech.
GOB. The mouth; also a bit or morsel: whence gobbets. Gift of the gob; wide-mouthed, or one who speaks fluently, or sings well.
–From the 1811 Dictionary of the Vulgar Tongue.
