The expression "nothingburger" to mean in essence "nothing to see here" has become extremely common in political discourse in the USA. From what I remember it really only became prominent in the last two or three years. What is the origin of this rather odd word, and what provoked the very recent spike in its usage? More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.