A Drip is a dull person. :>) A Drip is the sound of a leaking faucet. :>) Enough with the jokes. A DRIP is the acronym for Dividend Reinvestment Plan. Instead of getting the dividend in cash you automatically buy share using the dividend proceeds. This is especially good where you hold sock in a non taxable account such as an IRA or 401K. The compounding effect is really good.