I don't know, Donut! Well obviously I know what the cliche means, but the phrase is a bit impenetrable.
Another couple of phrases (they're not really cliches I suppose, but equally annoying), are "too much information" and "it's all good" [img]graemlins/1pissed.gif[/img]
At his last Wimbledon press conference, Lleyton Hewitt used the phrase "you know" 39 times, with an average of 3 "you knows" per question