A gaygay
A straight person who acts like a fag and does fag things. They're usually called this when they do something gay in front of their girlfriend.
My friend called me a gaygay for dancing with my crush at the party.
He said 'you're a gaygay' after I sang 'Bad Romance' at the karaoke bar.
She called me a gaygay for liking Lady Gaga even though I had a girlfriend.