A rowdy street loafer; a rowdyish or noisy ill-bred fellow; -- variously applied, as to a street blackguard, a street Arab, a youth given to horse-play, etc. [Australia & Eng.] -- a. Rowdy; rough; disorderly. [Australia & Eng.] Mobs of unruly larrikins. Sydney Daily Telegraph. Larrikin is often popularly explained by the following anecdote (which is without foundation): An Irish...