Wiktionary
ape leader
n. (context idiomatic 1811 English) An old maid.
Usage examples of "ape leader".
I vow, Millie, that I shall be declared an ape leader before the night is over.
Although Sir Archibald would never connect such a vulgar term as ape leader with his daughter, he did think it odd of Henrietta to wear such an overpowering cap.