Green’s Dictionary of Slang

of a man, having an erection; of a penis, erect.

1598		Florio Worlde of Wordes n.p.: A consciensa vitta... with a stiffe standing pricke.
1610–20		‘My Mistress Is a Lady’ in Farmer Merry Songs and Ballads (1897) V 14: If she had a thousand pound, / she would throught on the ground, / for the love of a standing pinckle.
1647		Parliament of Ladies 10: The Committee of Tryers, [...] named [...] the Earle of Denbeigh, to be a man of extraordinary abilities and parts, whereupon it was ordered that his Lord ship be commander in chiefe of all the standing forces of the Kingdome.
1660		Wandring Whore III 9: Another who has brought rods in his pockets for that purpose, will needs to be whip’t to raise lechery and cause a standing P--].
1714		N. Ward Hudibrastick Brewer 7: [He] Made Pulpits of his empty Tubs, That thro’ the Bung-holes they might shew Their Parts to the attentive Crew Of pious Dames, those sighing Saints Best won by Standing-Arguments.
a.1796		Burns ‘Here’s his Health in Water’ in Merry Muses of Caledonia (1965) 101: He followed me baith out an’ in, / Wi’ a stiff stanin’ pillie.
1834		‘The Wig & The Poll’ Flash Chaunter 35: With success to the Wig, and the stiff standing pole.
1890		C. Pearl in Blatchford Memoirs (1983) 124: Having made love to me for well over two hours, he still possessed himself in a standing state.