Noun.
A set of shoes that you can buy all together in one container or wrapper, the same way you can buy beer in a sixer or a twelve pack.
"Dude, I friggin love these shoes! I would just DIE if there was some way I could get a whole buncha pairs of them at once!"
"Then why don't you just get the six shupak?"
Doctor: Unfortunately, while this would have been covered under private insurance carriers, public plans were barred from including women's health measures. I'm sorry, you'll have to see "Dr. Julio" in the alley behind 7-11.
(Three weeks later.)
Doctor: I believe you've developed Stupak, a form of sepsis, a severe illness in which the bloodstream is overwhelmed by bacteria.
You thought that forcing schools to teach creationism was stupak? How about forcing poor women into back alley abortions? That's the stupakest thing I've ever heard.