A portmanteau of the two words 'style' and 'type', when used to describe something which suits you or exists in a form you enjoy. To say something is your stype is to be awesome.
How stype came to be;
Jen: I wouldn't say bad, just not my stype. I mean style.
Jen: ;_; I CAN'T TYPE
TK: Portmanteau of style and type... I like it.
Girl 1: Does this top suit me?
Girl 2: Totally. It has your stype written all over it.
Guy 1: Shouldn't you be studying for the exams instead of obsessing over playing Free Bird on Expert?
Guy 2: Studying? Not my stype. Now, Guitar Hero? That's a completely different story.
Guy 1: Lol, 'kay then.