It's the classic massIVECOck - I was going to start a community by that name for dirt graffiti but checked out r/massivecock and felt there might be some degree of confusion.
I always liked the two person graffito: “MOZLIMS OUTraged at poor spelling”. I’m also a fan of when fascists struggle to draw a correct swastika. Many seem to struggle with shapes as much as they do with words.