The slang term "went buggy" can refer to a situation wherein something went crazy or malfunctioned. Synonyms for "went buggy" include "went haywire," "went berserk," "went off the rails," "went bonkers," "went nutty," "went ballistic," and "went cuckoo." These words indicate an extreme or sudden change in behavior or function. They are often used to describe inanimate objects such as machines, but they can also refer to people who have lost control or become unstable. By using synonyms for "went buggy" in your writing or speech, you can add variety and emphasis to your language while conveying the same meaning.