Robert Booth, "'Ching, wap, ox': slang interpreters decipher texts for court evidence", The Guardian 3/29/2019:
Do you know your “tum-tum” from your “ching” and your “corn” from your “gwop” (gun, knife, ammunition and money)? Neither do police and prosecutors, who have begun consulting a linguistics professor to help decipher urban slang and drill lyrics used as evidence in criminal investigations.
The complexity of inner-city dialects and the growing use of texts and social media posts in court evidence has forced detectives and lawyers in London, the West Midlands and Essex to seek translations, according to Tony Thorne, an academic at King’s College London, who has been studying youth slang since 1990. […]
The dialect has become known among academics as multi-ethnic London English (MLE), though is not limited to the capital. Last autumn, an image circulated of a glossary of “youth language” on a whiteboard in a Lancashire police station including “peng = attractive, feds = police, swear down = tell the truth”.
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