dine-and-dashern.
/ˌdʌɪn(ə)n(d)ˈdaʃə/, U.S. /ˌdaɪnənˈdæʃər/ colloquial (originally North American).
A person who hastily or furtively leaves a restaurant, cafe, etc., to avoid paying for his or her meal.
ΚΠ
1979 Washington Post 5 Sept. c1/5 Butch Hubbard chased a dine-and-dasher to the corner.
2001 Province (Vancouver) (Nexis) 18 Jan. a3 A doorman was discreetly dispatched to the front door to stop dine-and-dashers.
2020 @hoedeehoe 6 June in twitter.com (accessed 22 Oct. 2020) I once saw a..server run down and apprehend 2 dine-and-dashers and as he ran past a table of women on his way to get them, he yelled ‘I'll be right back with your drinks.’
This entry has been updated (OED Third Edition, December 2021).
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n.1979