From honey + bunch.

honeybunch (plural honeybunches)

1. (informal) A honey, a darling .
   • 2005, Nancy Garden, Good Moon Rising, page 107:

     Listen, honeybunch, I don't want to be cruel, but you've got to think of everything.

   • 2008, Marc Harshbarger, Deeper Dish, page 154:

     “Open your eyes, Dad, I'm not your little honeybunch anymore.”