An Austrian-accented slang version of the word "
stuff," as in random things, now incorporated into American slang probably through characters like
Hans and Frans from Saturday Night live who were a spoof on Austrian-American bodybuilder/actor/film-maker Arnold Schwarzenegger.
It is often (but not always) emotionally loaded, as in "
stuff with emotional baggage attached."
"He needed to talk about his schtuff, so
now he's seeing the psychoanalyst down the street, Dr. Schwarzenfreud."
"She has a lot of schtuff goin' on in her life right
now. Give 'er a
break."
"Dude, that's a lot of schtuff in your garage! You need to feng shui the sh*t out of that!