When liquid drips somewhere, or you drip it somewhere, it falls in individual small drops.

When something drips, drops of liquid fall from it.

A drip is a small individual drop of a liquid.

A drip is a piece of medical equipment by which a liquid is slowly passed through a tube into a patient's blood.

If you say that something is dripping with a particular thing, you mean that it contains a lot of that thing.

If you call someone a drip, you mean that they are rather stupid and lacking in enthusiasm or energy.