(colloquial) The wife of a shopkeeper; also used to refer to a wife who manages the household finances.

(literary or colloquial) respectful way to address the son of a shopkeeper or boss.

manager or owner of a shop or inn in olden times

Someone who tells others what to do but does no work themselves; can also refer to a leader who has the title but avoids all responsibility and doesn't manage anything.

an arm-flinging shopkeeper; one who acts as a leader or manager in name only, refusing to take responsibility or do any actual work