The day is lovely.

Alternative form of what is your name

A male person or entity whose name one does not remember or want to mention but that is known to the person to which one is speaking.

(idiomatic) To admonish or berate; to speak angrily at somebody.

(idiomatic) Exactly what is necessary or useful in a given situation; something very beneficial or desirable.

(idiomatic) In spite of anything that might happen; whatever may occur.

(rhetorical question, somewhat hostile) Expresses discomfort because the interlocutor is looking at something; usually, this is said when the interlocutor has been staring at the speaker.

(MLE, MTE, slang) what's up, what's happening (a greeting)

Events that have already taken place cannot be changed and actions that have already been committed cannot be undone, so it is best not to dwell on them.

Alternative form of what's-his-name