Alternative form of God knows.

Alternative form of God knows

Third-person singular simple present indicative form of know better

plural of need-to-know

A rhetorical question asked to show that the person asking it neither knows the answer nor knows who might.

(idiomatic, dialect, slang) Indicates agreement, approval, encouragement.

(informal, idiomatic) Despite the addressee's belief that the speaker was unaware of something, the speaker, in fact, was already aware.

(idiomatic, vulgar, followed by a wh-clause) I don't know; nobody knows; it is unclear.

It is only known to God; it is unknown to people. / (often modifying a parenthetic concession) It is known unto God; it is certainly true.

(Ireland, dated) God knows; nobody knows / (Ireland, dated) God knows; of course, certainly, nobody could doubt