A gy is a person who is either very annoying or just a big asshole. They very often think they are very smart, but they are not they are just full of shit. They are very often redheads who are of Swedish descent and often use words which they think are cool but they aren´t. Some of those words are often corrupt or the sentence "I respect you". Just such bullshit.
This refers back to one day when Byron wanted to buy a bright pink scooter, which said Gy Hmo on the side. He "didn't realise* that that was text speak for Gay Homo.
What a gender reassignment man longs for and celebrates its arrival which ends up where his balls used to live. A pet name for a newly assigned functionalvagina