buy up

buy up idiom
Purchase all that is available, as in They want to buy up all the land in this area. This term was first recorded in a law enacted under Henry VIII: “They buy up all manner of fish.”

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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