WHAT IS A DOUBLE CROSS?

Double-CrossTo break a promise in a way that harms the person with whom the deal was originally struck. To double-cross is to back-stab and to two-time. 

Also, double-crossing can be merely ‘ratting’ someone out.Vic was double-crossed by his friend Alan, who informed Nelson Fingers of the upcoming deal.by Diggity Monkeez February 13, 2005