Green’s Dictionary of Slang

abigail n.1

[a character in Francis Beaumont and John Fletcher’s play The Scornful Lady (1610), although she was poss. so named in allusion to the expression ‘thine handmaid’ used in the Bible by Abigail the Carmelitess, 1 Sam. 25:24–31]

1. [17C–1900s] a lady’s maid.

2. [1900s-10s] (Aus.) a waitress.

3. [1950s+] (camp gay) an ageing, conservative homosexual.