when i first started programming in the early 90s we had someone on our team keep adding strcat("this string", NULL); His name was Karl. Every time we saw bad coding practices we called it Karl code.
We had a "Karl" at my first engineering job. Karl happened to be our team lead, but he produced a lot of Karl code. Many expletives and facepalms in that office. It got so bad, a member on our team that was highly religious asked to have their own office (and he got it).