run out on
verb1
Idiomatic To leave a partner or commitment suddenly and without prior warning.
- Vinton's former wife, Mitzi, ran out on him. Naomi had four previous marriages, to Tom, Bill, Leonard and George.2011, Vincent Terrace, Encyclopedia of Television Shows, 1925 Through 2010, 2d Ed., Volume 3, page 648:
2
Idiomatic To leave a restaurant without paying the bill; to dine and dash.
- I saw him run out on the check at an Applebee's.