Unknown. Perhaps an abbreviation oftinkle-tinkle.

tee-tee (uncountable)

1. (Southern US,childish)Urine.

tee-tee (third-person singular simple presenttee-tees,present participletee-teeing,simple past and past participletee-teed)

1. (Southern US,childish) Tourinate.

tee-tee (pluraltee-tees)

1. Archaic form oftiti.