Cracking the drug slang
A quick link to an article which mentions drug slang helps to illustrate the different uses and purposes of slang, this time as a code to exclude outsiders and hide criminal, drug-related activity. Perhaps the rapid turnover of new words for drugs - tea, cabbage, burger - as quoted in this article, reflects the nature of language change and how the we create, discard and recycle words to keep up with society's changing needs.