bon‧kers/ˈbɒŋkəz $ ˈbɑːŋkərz/ adjective[NOT BEFORE NOUN] 1. slightly crazy
2. drive somebody bonkers to make someone feel crazy or very annoyed: ▪ Thinking about the whole problem has driven me nearly bonkers.
adjective PHRASES FROM OTHER ENTRIES (stark) raving mad/bonkers ▪ All of this doesn't mean he wasn't stark raving mad, and just putting on. stark raving mad/bonkers ▪ All of this doesn't mean he wasn't stark raving mad, and just putting on.