But here's the meaning of "flounce" that we'll use most often. When you flounce somewhere, or flounce away from some place, you go in a fast, jerky way that shows that you're proud or happy, or mad or bothered.
As you can see, when you're flouncing off or flouncing into or out of a room, you're walking with a lot of movement. It could be because you're very pleased with yourself—or it could be because you're annoyed.
Make a flash card:
You can write your own definition and choose your own picture, or copy mine.
to walk somewhere in a bouncy, jerky way, because you're happy or mad
Write your own sentence!
You can use either of the two ideas I'll suggest, or you can invent your own. Include as much detail as you can!