go to pot
Also, go to the dogs. Deteriorate, decline; come to a bad end. For example, My lawn has gone to pot during the drought, or The city schools are going to the dogs. The first of these colloquial expressions dates from the late 1500s and alludes to inferior pieces of meat being cut up for the stewpot. The second, from the 1600s, alludes to the traditional view of dogs as inferior creatures. Also see rack and ruin; run to seed.