trump something ↔ up
From Longman Dictionary of Contemporary Englishtrump something ↔ up phrasal verbSCTRICK/DECEIVEto use false information to make someone seem guilty of doing something wrong They had trumped the whole thing up to get rid of him. —trumped-up adjective Dissidents were routinely arrested on trumped-up charges. → trump→ See Verb tableExamples from the Corpustrump up• And perhaps it was time to play the trump card up his sleeve.