Green’s Dictionary of Slang

spicket n.

[SE spicket, a spigot, a tap]

the penis.

[UK] in D’Urfey Pills to Purge Melancholy VI 91: Sometimes I am a Tapster new, / And skilful in my Trade Sir, / I fill my Pots most duly, / Without deceit or froth Sir: / A Spicket of two Handfuls long, / I use to occupy Sir: / And when I set a Butt abroach, / Then shall no Beer run by Sir.