Mocking nickname for musical bands who make their appearance on mainstream talk-shows. Over acting, copying the style of populair British & US bands, excessiveattention to style, fashion & hair do, and poor musical skills are typical for these type of bands.
General exclamation. meaning can be taken out of context like most profanity. To English-speaking people, it may make you sound German. To German people, it will probably make you sound stupid. Often said (in english) along with other words that sound typically german, and with a german accent.