"shisety" (new word?)

[Gerald Cohen]

    A reporter on CNN this morning was interviewing four snowboarders
in Vermont, following a heavy snow. They all agreed the snowboarding
is great now, as compared to some time in the past when the weather
(or snow?) was "shisety", as one of the young men described it.

    When the broadcast shifted back to the two anchors, the male
anchor commented that he liked "the shisety dude" and then he or the
female anchor wondered briefly where the word comes from. Evidently
neither one knows German or they wouldn't have asked.  They then
proceeded to another subject.

     Anyway, is "shisety" a term now being used in teenage slang? Does
it exist at all outside the speech of the one snowboarder who used it
on CNN?

Gerald Cohen