For ti the fat dog: colloquial Spanish expression with which apparently is the reason our interlocutor only to finish the discussion that already does not lead anywhere. It is to say vale, of agreement, what you say, but bitchy. The expression is still used even if fat dogs are already far. It was a coin minted in copper in 1870, after the expulsion of Isabella II in 1868, along with the girl dog. In an of their faces had a lion poorly designed and to them Spanish not makes missing stimulate them much the imagination. I used them in the 50's in my childhood; they were of aluminium alloy weighing very little and were worth 10 and 5 céntimos from peseta.
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