Designated Gay 

When a group of friends (typically male) lack a gay friend they will instinctively choose a friend to be called the gay one and to make gay jokes about. This person can have little to no homosexual traits but still be the Designated Gay because of the vibe they emit.

Oh, Grant? Yeah he’s a little weird. He’s also the Designated Gay in our group

Designated Gay by NanTheMemeMan June 21, 2019

Designated Gay Friend 

When lacking in a gay friend; the chosen selected male to fill this void in a group of females. This male will rarely accept his role as the gay friend whose responsibilities include fashion consult and drama queen, so it is necessary to keep their designation as a personal joke for as long as possible. Once the cat is out of the bag, tell them they are allowed in dressing rooms, cause, well, they're gay! *wink*

Designated Gay friend's role

Girls: "*insert name*, does this look ok?"
DGF: "How should i know?"
Girls: *glare*
DGF: "Well, actually the teal would go so much better with your complexion..."

Designated Gay Friend by Donna Frank July 19, 2006