pulled a "hughes"

A persistent false belief held in the face of strong contradictory evidence, which leads to deceitful actions.

John said, "Someone in my class was goofing off and making funky noises on a computer. The teacher came over to me, insisting that i did it. This resulted in my computer being unplugged."

Greg responded, "Wow what a bitch, she definitely pulled a "hughes" on you."