Grobens are very athletic human beings. They are often found at track meets and are always the fastest sprinters. If you ever find one you should consider yourself very lucky.
Is the biggest ghetto in all of northern Norway. The people there are noisy, loud, rebellious and generally bad people. They are all wannabe gangsters, and speed all around town in their Volvo 240's. Can be used as an adjective.
Grubenschnitzel ist a pseudo-German word invented by Americans, because they thought this combination of words sounded funny and every American knows what 'Schnitzel' means. Literally translated it would mean something like 'pit cutlet' which makes no sense whatsoever. It has no meaning in Germany. It is unknown when this word started to become a fad.
This tag for Arnold Schwarzenegger actually was coined by Steve Lopez, a writer for the Los Angeles Times, in a column the day after the recall election that installed Arnold as governor, in spite of his acknowledged history of breast and booty grabbing (or, as Arnold described it, "being playful"). Garry Trudeau made Lopez's term nationally famous in the "Doonesbury" cartoons. It's a pun on a German term for a group leader, "gruppenfuhrer."