(a)round the bend
1. In close proximity to another location. Said especially when traveling by car, often when literally approaching a bend. The store isn't far from here, it's just around the bend.
2. slang Crazy It's freezing today, and you're not going to wear a coat? Have you gone around the bend?
3. slang Intoxicated from drugs or alcohol. Do you remember last night at all? You were really around the bend!