For the period of an entire day, or at least during all the daytime of a day.

(idiomatic, often hyphenated) Of or pertaining to a description or other depiction which reveals the full range of characteristics of a person or thing, including the shortcomings and imperfections.

(idiomatic) In a manner which does not conceal shortcomings or imperfections.

An extremist or radical.

(temporal location, idiomatic) Late into the night or early morning; when people ought to be sleeping.

(idiomatic) Especially; more than other people

(set phrase, duration) Always; constantly; for the complete duration. / (set phrase, frequency) Very often; frequently.

plural of be-all and end-all

(US, idiomatic) Full of big talk but lacking action, power, or substance; pretentious.

(idiomatic) All talk and no results.