A character from the classic television show M*A*S*H, Major Frank Burns was a roommate of Hawkeye and B.J (or Trapper depending on season). Burns was an extremely conservative and very G.I. Hawkeye and his roommate often played practical jokes on him and poked fun about his poor medical and surgical skills. Overall someone to be described as a Frank Burns is a hypocrite and a kiss ass rule follower.
Person 1: Man the assistant principal is such a Frank Burns
Person 2: Dude you're right we should prank him