(US, naval) A naval aviator.

(US, naval) A person who works on an aircraft carrier but is not involved in flights.

(historical) Money in the form of shoes (ingots of gold or silver formerly used in trade in the Far East).

(idiomatic) The roles of people in a situation have been reversed, such that the advantage has shifted to a party which was previously disadvantaged.

An old and prestigious firm (usually in law or banking), possibly also culturally exclusive.

(idiomatic) If a description fits, it is probably the case; if an insult accurately describes you, you must bear it; if you take offence at an insult that was only implicitly directed at you, you admit the insult is true enough to be recognizable.

Alternative form of which foot the shoe is on

(idiomatic) Which point of view is considered or whose interests are used as a basis.

Alternative form of which foot the shoe is on

(simile) Comfortably familiar.