Not sure if this has been posted before, but came across this Pixies parody by British comedian Chris Morris.
Its a song titled 'Motherbanger', and is about 2 minutes into the mp3 at the link below (the two minutes before is a dig at UK afternoon 'wacky' radio shows).
Its not Morris' best work, but is still reasonably funny (and actually pretty accurate!).
Its taken off a flexidisc given away free with a magazine several years ago.