Yep. Except it turns out my aunt has been mishearing it all this time and thinking it was Bunion.
Bunion is not such an awesome nickname.
I pointed that out when she told me, and she's like yeah, I was wondering why your dad was calling you that, I was really confused.
For most of my life.
I also get Bun,
Bunny and Bunnykins, which are all a little on the cutesy side these days.
http://www.behindthename.com/pnl/56287