Definition of "musta" [musta]

• Must have. (phrase)

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• "We saw the lights coming and tried to get covered up, but he musta been bored out of his mind, because he was on that car like flies on stink."
• "Nah, couldn't be ... musta been the Grey Panthers blocking medical care from the under-80 generations ..."
• "That was where the poor Mexicans lived and musta gone to church."