Earlier today a member of Art of Manliness (AoM) posted a link to the TvTropes.org page about AoM. The page lists tropes that come up in various articles and discussions on AoM. You can see the AoM trope list here:
http://tvtropes.org/pmwiki/pmwiki.php/Website/TheArtOfManliness.
While looking through the list of AoM tropes, there was one called "Masculinity Tropes." It seemed awfully general to me, so I drilled down to see what was contained in that category. Surprisingly, I found "Manly Gay" listed:
Sitting on the opposite end of the spectrum from Camp Gay, Manly Gay is when a homosexual male character is shown not only in lacking Camp or feminine traits, but kept going in the opposite direction and into the realm of pure masculinity.
http://tvtropes.org/pmwiki/pmwiki.php/Main/ManlyGayBelow the entry on Manly Gay were listed examples from a variety or media and arts. Under the Film category, Brokeback Mountain is listed. You can see the Brokeback Mountain page here:
http://tvtropes.org/pmwiki/pmwiki.php/Film/BrokebackMountain