It is an adverbial phrase, a popular, almost paremiological, saying which means that someone does not respect rules, forbidden, customs, signs or laws. Equivalent to do what gives you want, without rules or constraints. It is taurine. But against the straight use of jump a bullfighter barrier to get rid of the bull and his onslaught, in the figurative sense that asks, "skip something to the Bullfighter", it is negative, because it goes against the established and the moral and good customs.
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