On another (sexually oriented) board, I found this, written by a gay man:
No one knows of our sexual connection. Wait, not true. Two people were told of it but believe it's a thing of the past. It's not. If I see him only twice a year both of those times we'll be intimate. (How 'Brokeback' of me)
I think we should encourage that usage, to drive out the drab "lame/bad/gay" meaning.
Brokeback: a. redolent of
Brokeback Mountain, eg a furtive and infrequent but emotionally charged affair
perhaps?