houghmagandy, n. — Green’s Dictionary of Slang

houghmagandy n.

also hochmagandy, houghmagundie

[? hough, the hollow part of the human knee joint, the adjacent section of the thigh + canty, cheerful, lively, brisk or gundy, a push; or ? fig. use of hashmagandy n. or SE hogmanay; Ebsworth, Bagford Ballads (1880), prefers an interpretation of gandy as a var. pron. of ‘go over gaudy’, extramarital intercourse ‘over the broomstick’]

(Ulster/Scot.) (adulterous) sexual intercourse.

c.1700		‘Bonnie Nancy’ in Maidment Old Ballads 11: I have a yonker of my own, / They call him souple sandy; / And well I wot he kens the gate / To play at hough-ma-gandy.
1785		W. Forbes Dominie Deposed 15: Lass will you lend me your loom? Or, sups of brandy, Or, gin the kirk wad let’s alane, Or houghmagandy.
a.1796		‘The Court of Equity’ in Farmer Merry Songs and Ballads (1897) IV 283: In other words, you, Jock and Sandy, / Hae been at warks o’ Houghmagandie.
c.1800		Burns ‘Gie the Lass Her Fairin’’ Merry Muses of Caledonia (1965) 104: The mair she bangs the less she squeels, / An’ hey for houghmagandie.
1896		Farmer Vocabula Amatoria (1966) 237: Rudiment, m. The act of kind; ‘houghmagundie’.
1997		Share Slanguage.
2012		D. O’Donnell Locked Ward (2013) 201: The Locked Ward’s padre [was] called Nicol. Despite being happily married and having begat a brood of Nicolettes (these Holy Joes certainly like the old hochmagandy) he was as camp as light opera.