My brother & I (31 & 34, respectively) have just been newly monikered by our 3-year-old niece. I have absolutely NO idea why, but Sid has been saddled with "Uncle Poop" and I am hereforth to be known as "Sun". (Sofi, of course, is delighted that I now call her "Moon".
) Even Sofi's big brother, Cameron, has taken to calling Sid "Uncle Poop".... I figure it won't be long before he picks up little sister's habit of calling me "Sun".
I also had a nickname applied to me in high school that, to this day, only 2 other people on Earth are allowed to utter - and only once a year, if then.
My cousin Carmen (Sofi & Cameron's mom, who's more like my big sister) & my best friend may, on rare occassions, call me "Spunky".
That came from a guy that I used to work with who I had SUCH the hots for. Carmen & I were in the store where he & I worked one day, and out of the blue he called me that. Carmen repeated it in front of Susan one day, who picked it up & actually got one of my teachers in school to start using it. For the following 2 years, Mr. Thomas only referred to me (even in class) as some version of "Spunky", a la Rob Schneider on SNL: Spunkmeister, Spunkster, etc.
While I have to admit it's kind of cute and even sort of accurate.....this is the face you'll get if you call me Spunky: