My son's nickname: Pookie
No idea where it came from, what it stands for, its meaning, or even its spelling. I just started saying the word and it stuck: Pookie! Its not pronounced like the word puke, but more like the name Suki or like snookie.
Apparently, after just now looking it up "Pookie" is a common euphemism to describe something cute. Garfield's teddy bear is named Pooky. I didn't even know it existed. Oh well, I must have picked it up from somewhere.
Before I go, let me leave you with this question:
We all had nicknames from our parents. Mine were nany or as my dad still calls me nanny poo-poo. What was your childhood nickname given to you by your parents?