“It is possible to’t polish shit” is a popular aphorism roughly comparable to "putting Lipstick on a pig" (Whilst "a turd" is much more frequently employed). Having said that, the TV show Mythbusters showed that anyone can, in truth, polish a turd. The phrase built just like a brick https://spencerbluip.tblogz.com/not-known-factual-statements-about-spic-50186148