Gay beyond belief. A level of Gayness beyond gay itself. When a person that is Supa Dupa Gay enters the area everything becomes awkward. "Some kind of gay" that is generally unexplainable. Generally one who possesses this trait can be identified by their actions or the mannor at which they present themselves. The most effective way to attack one who is supa dupa gay is to shun them.
"Hey dont look now everyone but here comes Gay Joe!"

"Hey hes not gay....... He's Supa Dupa Gay!!!!"
by HCHSForum October 7, 2011
Get the Supa Dupa Gay mug.
Being in supernatural form of Homosexual. Usually expressed among friends. Mainly code worded SDG,
That guy Joe is Supa Dupa Gay!

This game is SDG! (Supa Dupa Gay)
by Erin Gross October 7, 2011
Get the Supa Dupa Gay mug.