- The definition of frothy is someone or something that is light and bubbly.
An example of frothy is a blended coffee drink with lots of whipped cream on the top.
A cup of coffee topped with frothy milk.
- Made of, covered with, or resembling froth; foamy.
- Playfully frivolous in character or content: a frothy French farce.
(comparative frothier, superlative frothiest)