Growing up, my dad was the only one in the family with a nickname. His name was Harold Dean, but everyone knew him as "Mac" (our last name started with Mc...). My husband's family, on the other hand, is loaded with them. DH's dad was Bubba or Jimmy, and his grandfather was known as Dutch. He has aunts (on his mom's side) that are called Guinea and Schwester, and an uncle called Bookie.