Like Occam's Razor, 'Tony Blair's Razor' is a method of quickly establishing the truth in any given situation. The methodology, developed by leading academics, philosophers and theologians, states that 'the truth is always the precise and exact opposite of everything this utter twat says'.
Tony Blair likes to portray himself as a benevolent and honest humanitarian, so it's easy to establish that he is, in fact, an evil lying bastard by using Tony Blair's Razor'.