Green’s Dictionary of Slang

dumb glutton n.

the vagina.

[1748–49		Cleland Memoirs of a Woman of Pleasure (1985) 82: That delicate glutton, my neither-mouth, as full as it could hold, kept palating, with exquisite relish, the morsel that so deliciously ingorg’d it].
1785, 1788, 1796		Grose Classical Dict. of the Vulgar Tongue.
1793		Bacchanalian Mag. 111: When Jack he roll’d her on the grass, / And stopt up her dumb glutton.
1811		Lex. Balatronicum.
1823		Egan Grose’s Classical Dict. of the Vulgar Tongue.
1890–1904		Farmer & Henley Sl. and Its Analogues.

In phrases

feed the dumb glutton (v.) [it ‘eats’ the penis; note double entendre in D’Urfey, Pills to Purge Melancholy (1719); he is referring to a girl’s ‘kitty’ and says ‘I play’d with its Whiskers and would have had discourse,/But, ah! it was dumb and blind’]

to have sexual intercourse.

1790		‘Bumper Allnight. Esquire’ Honest Fellow 77: Some mouths they are fed / With butter and bread, / And others with veal and mutton, / But Paddy lugg’d out / A long pudding and stout, / And cramm’d it into her dumb glutton.
1890–1904		Farmer & Henley Sl. and Its Analogues.
1896		Farmer Vocabula Amatoria (1966) 16: Approvisionner. To copulate; ‘to feed the dumb glutton’.
1999		D. Lypchuk ‘A dirty little story’ in eye mag. 8 July 🌐 He fed the dumb glutton and gave the dog a bone until the rat went up the drainpipe.