MUGGING • DICTIONARY ONE.COM • Definition of Mugging

... one letter, a brief letter, to him from Pyechurch, for she was really too busy to write more often (at the Temple she wrote at least once every ten days) and he wrote back to say that he wished he were with her instead of mugging away at his beastly work in his stuffy study. His letter brought home to Pollyooly the great advantage she had over richer children in having years ago passed the seven standards at the Muttle Deeping school, and so done ...

— Happy Pollyooly - The Rich Little Poor Girl • Edgar Jepson

... we're booked here for a week more. He's written to Ponsford to say I can't turn up till next week, and says I'm doing some of the mug, so as not to be all behind. Jolly good joke of the gov.'s, isn't it? Catch me mugging here! ...

— The Master of the Shell • Talbot Baines Reed