Sorry my English is not very good. I thought granny means
grandparents.
Grandparents mean Grandfather and/ or Grandmother. It is not clear,
like parents.
So Granny is a term which is general, and I just say 'he' because
it is the generally used word for referring to unclear single third
party.
Best Regards,
Meat Pao.
Third year English major.
Ps: I just checked the online dictionary, I was wrong. I was
tricked by the - y ending. Granny, I thought was short and fun form
meaning grandparents.