tipping

verb

To provide with a tip; to cover the tip of.

1. (To cause) to become knocked over, fall down or overturn.
2. (To cause) to be, or come to be, in a tilted or sloping position; (to cause) to become unbalanced.
3. To drink.
4. To dump (refuse).
5. To pour a libation or a liquid from a container, particularly from a forty of malt liquor.
6. To deflect with one′s fingers, especially one′s fingertips.

verb

To hit quickly and lightly; to tap.

1. To give a small gratuity to, especially to an employee of someone who provides a service.

   In some cities waiters must be tipped.

2. To give, pass.

verb

To give a piece of private information to; to inform (someone) of a clue, secret knowledge, etc.

1. The practice of leaving a tip (gratuity).
2. The act by which something is tipped or inclined.
3. The dumping of rubbish.
4. A distinct articulation given in playing quick notes on the flute, by striking the tongue against the roof of the mouth; double-tonguing.