It came in the form of a Vine response during a question-and-answer session Tuesday to promote her "Let's Move" initiative, a campaign that aims to end obesity by promoting exercise and healthy eating habits.
Iman Crosson, a well-known impersonator of Mrs. Obama's husband, asked her a question incorporating the phrase "turn up," slang that means "going wild."
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Her response wasn't a direct answer to the question. What she said instead was too good to spoil (pun intended). Just watch:
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It's unclear whether the exchange was coordinated ahead of time, but either way, well-played, Mrs. Obama.