drum roll

US /ˈdrʌm.roʊl/
UK /ˈdrʌm.roʊl/
"drum roll" picture
1.

a rapid succession of beats on a drum, especially as a prelude to an announcement or to create suspense

:
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The magician paused for a drum roll before revealing his trick.
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We heard a dramatic drum roll as the curtains opened.
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