Green’s Dictionary of Slang

1. the penis.

1686		Dorset ‘A Faithful Catalogue of our most Eminent Ninnies’ in Works of Rochester, Roscommon, Dorset (1720) n.p.: But by the help of an assisting thumb / Squeezes his chitterling into her bum.
c.1800		‘The Reels o’ Bogie’ Burns Merry Muses of Caledonia (1965) 154: You’d sworn it was a chitterling / Dancing the reels o’ Bogie.
1896		Farmer Vocabula Amatoria (1966) 13: Andouille, f. The penis; ‘a chitterling’.

2. (also chitterlin) a flaccid penis; thus its posessor, an impotent man.

1675		‘Tom Farthing’ in Chappell Roxburghe Ballads (1874) II 447: Rivel’d up like Chitterlin, Thou’rt sometimes out and, sometimes in And all thou dost’s not worth a pin.
1675		Fumblers-Hall 9: Jone Would-have-more: Hes but a meer Gut, a Chitterling, a fiddle-string that will make no music to a Womans Instrument; yet when I tell him on’t, he pulls it out and shakes it, and puts up his fiddle-stick again.
c.1680		‘Fumblers-Hall’ in R. Thompson Pepys’ Penny Merriments (1976) 262: A meer Gut, a Chitterling, a Fiddle-string, that will make no musick to a Womans Instrument.
1687		T. Shadwell Juvenal V 312: ’Tho’ all the Night he dallies, ’tis in vain, It still does a poor Chiterlin remain.
1688		‘Session of Ladies’ in Wilson Court Satires of the Restoration (1976) 212: What would she do with a poor chitterling, When a thousand stiff Irish pricks could not please her?