[...] one may throw the term out the window, but others will continue to use and disseminate it. The alternative is precisely to regard its vagueness and self-contradictoriness as its defining characteristic. This was the route taken by Pierre-André Taguieff, for whom populism is a political style which ‘can shape diverse symbolic materials and be fixed in a multiplicity of ideological positions, assuming the political colour of its place of reception’. The same line is taken by Yves Surel who, in an essay on Berlusconi, argues that populism does not represent a coherent trend, but corresponds to ‘a dimension of the discursive and normative register adopted by political actors’. Populism, writes Ernesto Laclau, ‘is not a fixed constellation but a series of discursive resources which can be put to very different uses’, ‘floating signifiers’ that convey different meanings in different historical-political conjunctures. The idea that populism works when regarded as a certain kind of rhetoric, applied in different ways in different situations, is appealing—but in truth, merely registers its polysemy and returns it to sender. However, there is a third possible line of attack. It is this: populism is not a self-definition. No one defines themselves as populist; it is an epithet pinned on you by your political enemies. In its most brutal form, ‘populist’ is simply an insult; in a more cultivated form, a term of disparagement. But if no one defines themselves as populist, then the term populism defines those who use it rather than those who are branded with it. As such, it is above all a useful hermeneutic tool for identifying and characterizing those political parties that accuse their opponents of populism.