rector of the females, n. — Green’s Dictionary of Slang

rector of the females n.

[SE rector, ruler + ? pun on erection]

the penis.

c.1674		Rochester ‘Satyr’ n.p.: Then pulling out the Rector of the Females, / Nine times he bath’d him, in their piping hot Tails.
1896		Farmer Vocabula Amatoria (1966) 19: Aspergès, m. The penis; ‘the Rector of the females’.