tirly-whirly, n. — Green’s Dictionary of Slang

tirly-whirly n.

also tirly-wirly

[coined by Robert Burns (1759–96); SE tirly-whirly, a whirligig or, Scot. tirly-whirly, winding, intricate]

the vagina.

1786		‘The Court of Equity’ in Burns Merry Muses of Caledonia (1965) 211: Ye hae rais’d a hurlie-burlie / In Maggy Mitchel’s tirlie-whurlie.
a.1796		‘The Court of Equity’ in Farmer Merry Songs and Ballads (1897) IV 282: And that ye wroucht a hurly-burly / In Jeanie Mitchell’s tirly-whirly.
1827		‘The Tailor’ in Burns Merry Muses of Caledonia (1965) 123: Some day, quo’ she, ’twill gang its lane, / [...] / For my tirly-wirly mak’s its mane.
1890–1904		Farmer & Henley Sl. and Its Analogues.