self-owned

a plan that rebounds adversely on the originator; has the opposite effect to what was intended, creating public humiliation

backfire rebound boomerang

Devin Nunes self-owned himself in magnificent fashion when he filed his case against Twitter.

Alabama Sharpie

Trying to trick other people into believing an alternate truth.

I saw on Facebook that he was out with another girl but he pulled out an Alabama Sharpie

President Trump accidentally named the wrong state, then he tried to pull an Alabama Sharpie.

Carnegie Syndrome

When the rich try to buy back their reputations by donating large amounts of money publicly.

Bob fracked for oil in our community until we had sink holes, then he donated money to build a stadium with his name on it, it’s the definition of Carnegie Syndrome.