run out on (someone or something)(redirected from running out on them)
run out on (someone or something)
To abandon someone or something that one is committed to or responsible for, especially very suddenly or abruptly. I can't believe you would even consider running out on your family when they need you the most! The jerk at table four ran out on his bill, leaving us in the lurch for nearly $250.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
run out on
Desert, abandon, as in He's run out on the family. [First half of 1900s]
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.