throw over

throw over idiom
Reject, abandon, as in They'd lived together for a year when she suddenly threw him over and moved out. This idiom, possibly alluding to throwing something or someone overboard, was first recorded in 1835.

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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