The word "Nancy-boy" is a postwar term for a homosexual male. It is a softer word than faggot, queer, or dick-smoker. "Nancy-boy" is synonymous with "that way," meaning light-in-the-loafers, but harmless and not at all threatening or predatory.

One who has a mania for music.

Phrase used to identify a Gay male (homosexual), typically inferring that they are overly effeminate/weak and is generally used as an insult.

an effeminate man; what gay men were called back in the days when gay meant happy

a feminine gay dude

a nancy boy can cover three different people but the top one is the most important term.

1. a very feminised man (the original meaning)
2. but today it's used as a term for a gay guy too.
3. it can also be used to describe a boy on the transition to a girl.

it's most used by the British and the phrase most likely originated from either Manchester or Liverpool.

effete male - metro-sexual