white hat

all hat and no cattle

Full of big talk but lacking action, power, or substance; pretentious.

all hat and no cowboy

Full of big talk but lacking action, power, or substance; pretentious.

black hat

A villain in a story, especially in a Western (a film or other work of the Western genre).

black-and-white

Classifying people, objects or concepts as two polar opposites, especially "right" and "wrong"; dichotomous and inflexible.

brick in one's hat

Drunkenness.

does the Pope wear a funny hat

Obviously! Rhetorical question in response to a question where the answer is an emphatic yes.

eat one's hat

Used in a result clause to express disbelief in a proposition expressed in a conditional clause.

gray hat

A morally ambiguous character; an antihero.