(idiomatic) To be serious, organized, worthwhile, etc.

A rhetorical question used to express incredulity or surprise: who would have guessed it?; who would have thought that would happen?

simple past tense of could care less

simple past tense of could not care less

(idiomatic) To be particularly, especially uncannily, observant; a perceived ability to see in all directions at once.

(idiomatic) To remain calm, composed, focused, or aware.

(idiomatic) To seek to have two things which are mutually incompatible (such as eating a piece of cake and yet still possessing that piece for future use).

(idiomatic) To be composed or lucid (especially of an elderly or mentally ill person).

(idiomatic, US) An indirect way of expressing someone is gullible.

Used to say that you want someone to do something faster because you do not have enough time to wait for them to finish