used to describe people (usually women) who pretend to be bi-sexual (or on-line at dating and social sites) in order to get attention in public, but actually aren't bi-sexual.
aka "fake bi-sexuals" "faux bi-sexuals"
"She makes out with women in front of her boyfriend, but really, she's bi-spurious."
Being so confident in one's heterosexuality that the person actively seeks to put themselves in a homosexual encounter, just to prove how they can have gay sex and still be straight.
Dmitry is so securious that he's willing to put a penis in his mouth to show how comfortable he is with his unwaivering heterosexuality.