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EH IT'S JUST AN OLD PERSON PHRASE: What is this thing in our inbox: "In a new column, MSNBC pundit Pat Buchanan refers to the Nicaraguan president as 'the scrub stock of the hemisphere.' What does 'scrub stock' mean? It turns out it's an antiquated phrase referring to an inferior breed of farm animal -- and eugenicists once extended the use of the phrase beyond animals and into humans." For the 1,000-word insanely over-researched etymological report that ultimately concludes that Pat Buchananprobably meant nothing racialwas a terrible, snarling racist when he used this old-timey metaphor, TPM Muckraker has the scoop! [ TPM Muckraker ]