vocabulary - Is there a friendly calling for uncle?

‘Auntie’ seems to be a friendly calling for ‘aunt.’ Then is there the word for ‘uncle’?

Answer

People sometimes say "Unk". As in, "Hey, unk, come over here!" But this is not as common as "auntie". In modern American usage, I don't think either is very common. We pretty much say "aunt" and "uncle".