popsy

noun

1. (informal)Grandfather.
2. (informal)Father.

   “Dear Popsy, I need your help. Mother writes that if I don't return the leg immediately she will come to the school and take it by force. You must stop her, Popsy.”

3. (UK, dated, slang)A girl.

   “Pilots are often interested in nothing but popsies, kites, and beer.”