Larrikin is an Australian English term meaning "a mischievous young person, an uncultivated, rowdy but good hearted person", or "a person who acts with apparent disregard for social or political conventions".
In the 19th and early 20th centuries, the term generally meant "a lout, a hoodlum" or "a young urban rough, a hooligan", meanings which became obsolescent.
The term larrikin was reported in an English dialect dictionary in 1905, referring to "a mischievous or frolicsome youth". The word lupikin, from Scottish Gaelic lubaiche, in the Cromarty Fisherfolk dialect, meaning scoundrel", is unlikely to be cognate.
Commentators have noted the larrikin streak in Australian culture, and have theorised about its origins. Some say that larrikinism arose as a reaction to corrupt, arbitrary authority during Australia's convict era, or as a reaction to norms of propriety imposed by officials from Britain on the young country. The term was used to describe members of the street gangs that operated in Sydney at the time, for example the Rocks Push – a criminal gang in The Rocks in Sydney during the late 19th and early 20th centuries – who were noted for their antisocial behaviour and gang-specific dress codes. An October 1947 editorial in The Australian Women's Weekly equated larrikinism with vandalism including arson, "They are the people who leave their picnic fires smouldering, and start blazes that deal the final blow to green loveliness", and defacing monuments, "A similar larrikin streak sends louts into city parks to shy stones at monuments and chip noses off statuary".
"The Queen must surely be proud of such herioc men as the Police and Irish soldiers as It takes eight or eleven of the biggest mud crushers in Melbourne to take one poor little half starved larrakin to a watch house."
Australian vernacular speech commonly inverts a word-meaning ironically to a diametrical opposite, e.g, nicknaming a red-haired person as "Bluey". In similar fashion highly derogatory terms such as "bastard" and "larrikin" are frequently deployed with affectionate, even respectful connotations. For example, in 1965 Australian swimmer, Dawn Fraser, was banned from competition by the Australian Swimming Union for various incidents at the previous year's Summer Olympics. Fraser was later described as having a "larrikin streak" as well as being an "iconic figure", and was appointed an Officer of the Order of Australia in 1988.