who are you telling

anybody who is anybody

Any person who is well-known or important, especially one who has prominent social standing.

dog who caught the tire

One who accomplishes a seemingly impossible feat, but does not know what to do next.

everybody who is anybody

All of the people who are well-known or important, especially those who have prominent social standing.

hard telling, not knowing

I don't know.

I'm not telling you

Used to express that someone doesn't need to know something, typically because it is a secret (sometimes used as a way to attempt to hide someone's wrongdoing); may also be used when someone tries to ask for answers while doing an assignment or examination, or private or confidential information, including passwords.

raise the flag and see who salutes

To float an idea, (or otherwise do some action) to see what response or controversy (if any) it generates, usually as a preliminary step.

there is no telling

Used to indicate that something cannot be known or predicted with certainty.

though I say it who should not

Appended to a statement of self-praise, as a form of modest apology.