Adjective: a description of melodramatic, exaggerated, adrenaline fueled acts of idiocy that are glorified by the male gender. These acts, such as "Death Races in super armored battle cars", "Pimping with 20 women, all double Ds!", "Riding a flaming motorcycle to hell that runs on heroine!" as you will often seen depicted in movies, comic books and video games are aimed at young males to make them feel better about leading their otherwise dull lives, are referred to by this description. Mild negative connotation.
Brian: "Dude! That armor-piercing missile launcher attached to the giant mecha is awesome! Almost as awesome as the blue haired pilot, I want to get on that bubble booty and those gigantic tits!"
Sheila: *rolls eyes* Brian, that is so boytarded!
Example in media: Death Race (the movie) and Warhammer 40K