have always remembered my mother referring to my penis when I was very small, just beginning to learn words, as my "bottee"

There would have been major confusion in our house where a "bottee" was on the other side - obviously a diminutive form of bottom.

Who remembers a old LP (Small Faces?) where a narrator voice asks if we are all sitting comfortably "four-square on your bottees"? It perfectly describes the way my fat, short-legged Jack Russell sits up on her hind quarters when she begs.