According to the OED, the first occurrence of "slush pile" was not in reference to what we commonly now know as unsolicited manuscripts from unheard-of (and often insane) aspiring authors. It appeared in January 1907, when the Washington Post published an article accusing J.H. Seward & Co. "of fraudulently obtaining refunds of customs on fruits imported into this country." Apparently, when government inspected the piles of "waste fruit"-or "slush"-they found….