Flail

To move your arms or legs around quickly and wildly, like when you're trying to swim but you're not very good at it.

Examples

• During the soccer game, I saw my teammate flail his arms in excitement when he scored a goal.
• When the wind picked up, the leaves began to flail around, dancing in the air like they were having a party.
• As the puppy ran around the yard, it would flail its paws in the grass, trying to catch a butterfly.

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Antonyms