Short for Gay Slavery. Harshly overworking your Gay friends for little or no rewards. Bondage, severe toil; drudgery.
(Although..a little Bondage
could be ok, in the right circumstances! Let's be real!)
What do you mean I can't have a cocktail until I finish cooking the Beef Bourguignon?! That's Gayvery you bitches! Now, where's my Martini?!