Zippy can mean speedy, or bright and spirited. You may wake up in a zippy mood, full of energy, and jump in your zippy little car so you can get to school early.
When an object is zippy, it moves fast or energetically, like the zippy robotic vacuum cleaner that regularly terrifies your cat. And when people are zippy, they're spirited, like a zippy dance troupe. Language can be zippy too — think of wisecracking dialog or clever wordplay. This informal adjective comes from zip, "the sound of something moving rapidly."