It's an adjective meaning vibrant, outgoing, stands out, aware, and loud.
That girl was so spacurious when she was wearing her pink gucci top and and black matching purse and pumps, screaming at the dirtypeople as they smelled up the hallway walking past her.
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.
Someone who has an intense affinity for Creative Self Expression and strong curiosity about The Sims video games- but hasn't played the game yet (or isn't willing to admit it)
Since he was 13, Gary was extremely SimCurious but hadn't found the right Sims game to play and was too shy to ask Halo buddies about it.