plead ignorance

Proclaim, admit that one does not know a detail, circumstance or fact

Hey Jimmy, I'm going to have to plead ignorance on the game starting time tomorrow.

Plead the 45th

When you, or your lawyer, talk absolute shit in a courtroom, resulting in the judge or jury getting gung ho with the tariff.

Hey Donnie, you demanded we plead the 45th but eh... now the judge wants you to bend over and pick up a $350m bar of soap.

plead the 69th

pleading the 69th protects you from any words, or actions, that you did/said while you were horny. can be used in any instance, and is legally binding

Tina-"didn't you send cathy a dick pic?"
joey-"i plead the 69th"

ugly chick-"you still down for what we talked about last night?"
joey-"i plead the 69th"