Meaning of double cross
- a betrayal or swindle of a colleague.
- an attempt to win a contest that one has agreed beforehand to lose. Cf. cross (def. 21).
- a cross in which both parents are first-generation hybrids from single crosses, thus involving four inbred lines.
Pronunciation: (dub'ul krôs', -kros'), [key]
— v.t. Informal.
- to prove treacherous to; betray or swindle, as by a double cross.