Did something you thought was a great idea that actually ended up really hurting you and making you look like an idiot. Shitting the bed.
My boss totally Trumped it when he fired a guy to show the other employees that "anyone can be replaced" and it turned out that was the only guy with the combo to the cash safe.
trumped - similar to 'to doctor' or 'to screw up', especially if trying to skate in some 'genious' scheme. Covers a nefarious range of activities, from shitting on a girlfriend, to fake-acting, to publicity-hounding disguised as sincerity.
He trumped his girlfriend gangam-style, coming in her mouth before calling off the wedding.
That new accountant made so many mistakes he hard-trumped all the franchisees.
By going state's evidence he trumped his entire mafia family.
Herman didn't realize he had been trumped until he noticed everyone blamed him for the boss's fuck-up, but by then it was too late.
His own daughter didn't know she had been trumped until the will was read, and all she got were assets that had already been seized by the government.