Well we have a few:
Hound dog (When I m talking 2 my husband on my way home from work I will say, "So what is my hound dog doing?"
Bubba
Mommys boy
His AKC name is Pagel's Turbo Kanin so one of my husbands friends call him Turbo sometimes. He got the name Turbo cause my husband drinks Old Milwuakee Light beer and here the call it "Turbo". When I was trying to think of a name he kept telling me Turbo and I said NO WAY!! But the more I thought about it the more I liked it but didn't want to call him that so I came up with Kanin - spelled with a K for my name...Kate and it was different, as I didn't want a normal name so he is my Kanin - pronounced like Cannon