MUGGING • E-FREE TRANSLATION.COM • Definition of Mugging

... to procure a camera for taking photographs of the persons fingerprinted. This is known as a "mugging" camera and various types are on the market. It is believed that the photographs should include a front and side view of the person. In most instances a scale for indicating height can be made a part of the picture even though only ...

— The Science of Fingerprints - Classification and Uses • Federal Bureau of Investigation

... war - a very interesting bit of history, the truth often very hard to come at, and the search (for me) much complicated by the German tongue, from the use of which I have desisted (I suppose) these fifteen years. The last two days I have been mugging with a dictionary from five to six hours a day; besides this, I have to call upon, keep sweet, and judiciously interview all sorts of persons - English, American, German, and Samoan. It makes a hard life; above all, as after every interview I have to come and get my notes straight on the nail. ...

— Letters of Robert Louis Stevenson - Volume 2 • Robert Louis Stevenson