Outside the long-running reality series, one doesn’t hear the word “bachelor” used to refer to unmarried men that often anymore, and hardly ever has an unmarried woman been referred to as a “bachelorette” (“spinster” skipping straight to “single woman”). Consequently, in the US, the only time in her life a woman might be called a “bachelorette” may be at the party to celebrate how she’s about to get married.
“Bachelorette party” sounds red-faced and boozy, and so captures the contemporary prototype pretty well. Hen’s night brings chickens into it. I get that they are female chickens and that it’s sort of like the counterpart of stag night, only instead of virile deer frolicking about there’s a bunch of clucking. Hen’s night is unequivocally the classier term, and sounds like something for which it’s perfectly fine to bring mum.
Jeremy’s winner: bachelorette party