A noun used to identify a
non-related gay male who is regarded as an "honorary uncle" by his
friends and their
children. Often used as a term of endearment.
"Janie look at this
beautiful Tiffany rattle your Guncle
Johnny gave you when you were just a baby."
"Janie just got back from a day at the spa with her Guncle
Johnny before her senior prom."
"Janie had fantastic centerpieces done by her Guncle Johnny at her wedding reception!"