Green’s Dictionary of Slang

female pubic hair; thus take a turn at Bushy Park, of a man, to have sexual intercourse.

1772		G. Stevens ‘The Sentiment Song’ in Songs Comic and Satyrical 126: The pleasant plac’d Water-fall ’midst Bushy Park; / The Nick makes the Tail stand, the Farrier’s Wife’s Mark.
1798		‘Runnymede Pillar’ in Hilaria 29: The pillar’s to stand in Middlesex land, / Bushy Park centre’s the sweet pleasure ground.
1834		‘Bushey Park!’ in Delicious Chanter 21: He quickly made an entrance into Bushey Park.
1837		‘The Chapter of Smutty Toasts’ in Icky-Wickey Songster 9: Here’s the pleasant placed waterfall ’mid Bushy Park.
1841		‘Toasts And Sentiments’ in Gentleman’s Spicey Songster 48: Here’s a good night in Bushy-park.
1890–1904		Farmer & Henley Sl. and Its Analogues.
1896		Farmer Vocabula Amatoria (1966) 31: Barbe de la femme = the merkin; ‘Bushey-park’.
1980		Maledicta IV:2 (Winter) 187: To [...] return to the quim whiskers, common terms include the geographical (Bushey Park).