noli illigitimi carborundum Share definition Flag Latin phrase, often used in order to communicate the phrase "dont let the bastards wear ya down." "Terry's being a dick!!""Noli illigitimi carborundum, mate." noli illigitimi carborundum by Moussed Moose November 30, 2016 0 0 Get merch Get the noli illigitimi carborundum mug. Buy Now — $32.95 See more merch