Usually phrased as a rhetorical question to sugest that there is infact, behaviour or banter that is socially unacceptable.
If others agree that the person does infact deserves this remark they will respond; "Many Gays"
Will: "No, Valerie's Sung by Amy Winehouse"
Beno: "Yer, But its done by Mark Ronson"
Will: "Er, No"
Birksy :"Alright, Chill out Will"
Lil P :"God... Any Gays?"
Chorus :"Many Gays!"