rustle up

verb

1. to prepare (a meal, snack, etc) rapidly, esp at short notice

2. to forage for and obtain

Idioms and Phrases

Get together food or some other needed item with some effort, as in I don't know what we have but I'll rustle up a meal somehow, or You boys need to rustle up some wood for a campfire. The verb rustle here means “to assemble in a hurry.” [Late 1800s]