whistle up

To get something or someone to appear very quickly, as if by magic.

"The general whistled up reinforcements within the hour."

Hear it in context

Dungeons & Dragons: Animated Series | Episodes 18 - 19 | Full Episodes

Dungeons & Dragons · 9:01

Whistle up a 747?

Ducks vs. Golden Knights | NHL Playoff Highlights | Game 1 | May 4, 2026

NHL · 3:54

Now the whistle up to it as well.

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