If something is gay, gay friendly or acceptable to the gay community it can be signed off as "GayOK".
It's a play on the phrase "A-OK" meaning fine or correct.
Gayoung is a girl who is always there for you to help. She never rejects people's favor, kind, and intelligent. She can be bitchy sometimes but other than that, she is an amazing and bubbly girl that will lighten people's mood all the time!