Someone whose eccentric/undesirable behavior is all-too-well-known --- i.e., "notorious" --- all over town.
Hippie-types who strongly wanna spread their messages of, "save the whales", "no nukes", "peace on Earth", etc most definitely DO have my full support; it's when they get pushy or preachy and then start to piss off other people that they "cross the line" and become notory publics.
by QuacksO November 19, 2018