(colloquial) Yourself and your family or loved ones, usually in salutations.

Used to accept (or call) a bet, and at the same time raise the stakes.

Do whatever you desire to do; be yourself.

(informal) Used as an affectionate way of saying goodbye

(rhetorical question, sarcastic) Used in response to someone’s threat suggesting that the person in question cannot do what she or he says alone.

(US) Alternative form of you and whose army

In confidence; used to impose an obligation to keep something being discussed secret.

(proscribed) Alternative form of between you and me

If you eat well, you will be well; however, if you eat badly, you will feel bad.

If one is not alert and attentive, one will not be successful.