Come on, we all know one. And you’re dying to buy them this coaster - Laughter guaranteed! Nob Head - A British slang term used to describe someone who is foolish or annoying. Similar to idiot, the phrase that conveys frustration towards someone who is behaving in an irritating manner. A fun coaster in Cornflower Blue with our signature speech bubble which reads "Nob Head". A thoughtful, easy to post gift.