Is being playfully whipped by a tea towel flirting?

At work a lady coworker I know playfully whipped me with a tea towel twice while we where one break she was laughing and smiling when she did it. Is this flirting because I've never seen her so it to anyone else at work.

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It was a light and playful hit and i don't think she meant to make contact first time.
Is being playfully whipped by a tea towel flirting?
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