(idiomatic, emphatic, colloquial, vulgar) A sarcastic expression of disbelief.

(Britain, Australia, slang) Go away.

(archaic) Used as a greeting, especially to a lady. / (archaic) Used as a closing of a personal letter.

(humble, archaic, chiefly in Bible translations) I, me (when addressing two or more people)

plural of by-your-leave

(idiomatic, colloquial) Used to express the speaker's skepticism about another's preceding statement about a desired or assumed state of affairs.

(vulgar, slang, the third person plural) you (in the plural); you (in the plural); yourselves (in the plural).

Synonym of yours truly

(formal) A title of respect used when addressing heads of state other than monarchs, heads of government, governors, ambassadors, certain ecclesiastics, royalty, and others holding equivalent rank.

(rare, humorous) A pseudo-title of respect used towards a duke.