head boy—(UK) a school prefect who often represents the school on public occasions:
- No matter how excellent may be the original disposition of the head boy, if there is no one who dare stick up to him, he soon becomes intolerable.
principal boy—traditionally in Great Britain an actress, not an actor, who takes the leading male part in a pantomime:
- You both walked as gracefully and proudly as if you were the principal boy and girl at the Drury Lane pantomime.