A blend of vertigo, disgust, anger and embarrassment, such as felt when watching one of Microsoft's spectacularly cringeworthy "Windows 7 Launch Party" videos.
Coined by Charlie Brooker writing for the Guardian.
Did you see Microsoft's Windows 7 launch party video? It was shitasmic!
I have the most awful case of shitasmia from cringing so much at the goofy acting in that show.