Name of a chocolate bar which appeared briefly in the mid eighties. It was intended to resemble a log with bark-like markings in the chocolate but did in fact bear closer (and thus more amusing) resemblance to a poo. Only more disconcerting than someone eating a Logger and getting chocolate all around their mouth was the Fruit and Nut version of the Logger which was, quite frankly, only one small step away from a Sweetcorn Logger in terms of unappetizing confectionery. The use of the word Logger as a slang term for a turd may or may not have preceded the appearance of this in shops. I forget.