Green’s Dictionary of Slang

1. (also doniger, donniger) the penis.

1963–74		B. Humphries Barry McKenzie [comic strip] in Complete Barry McKenzie (1988) 82: Let them try dipping their dongers into that lot.
1970		San Diego Sailor 11: There was something about his doniger that make [sic] me feel like I’d never felt before. [Ibid.] 35: His donniger was no longer between my legs.
1985		B. Humphries Traveller’s Tool 19: All they do is line up a salesman with a donger like a baby’s arm.
1988		A. Hollinghurst Swimming-Pool Library (1998) 18: I had a lad in this morning with the most enormous donger. [Ibid.] 141: A little chap who’s already got a big donger on him, gets a hard-on all the time.
1990		‘Collecting a Medical Lexicon’ AS LXVII:4 410: Familes may have private code words for taboo terms (e.g. donger for penis and June bug for vagina [etc.].
1996		J. Cameron It Was An Accident 31: Them Germans got a load of lettuce Nicky and what I heard bleedin’ great dongers an’ all.
1996		J. Byrell Lairs, Urgers & Coat-Tuggers 61: After that Big Oscar pretty well let his donger droop.
2001		Bug (Aus.) 1 Jan. 🌐 The declining value of the donger: The Bug’s resident sexologist, Dr Dick, reports that if it’s still a man’s world somewhere out there, it’s one filled with self-doubt and confusion.
2003		McGill Reed Dict. of N.Z. Sl. 64: donger/dunga/dunger 1. The penis, variants of British dong. 2. An idiot.
2005		R.T. Stone Journals Book 2 463: Colin wouldn’t know Christmas from Bourke Street, but he’s a got a donger the size of a dijeridu.
2014		me-stepmums-too-fuckin-hot-mate at www.fakku.net 🌐 Feel like my donger’s gonna melt.

2. a general term of abuse.

1990		Tupper & Wortley Aus. Prison Sl. Gloss. 🌐 Donger. Penis. Generalises to a term of derogation.
2003		see sense 1.