I googled it - check this out! Sounds like it was created by some people with a great sense of humor-named after a dog (Pickles) who used to chase balls then hide them... from their website at usapa.org/whatis_pball/index .php
"Hi, my name is Pickles, the family cocker spaniel of one of the
co-inventors of pickleball. I used to chase stray balls and then hide
in the bushes, so they named the game after
me. I am very proud.
is a fun game that is played on a badminton court with the net lowered
to 34 inches at the center. It is played with a perforated plastic baseball (similar to a whiffle ball) and wood or
composite paddles. It is easy for beginners to learn, but can develop
into a quick, fast-paced, competitive game for experienced players "
there is an organization...USA Pickleball Association