Slang term for Marijunia (weed) commonly used by chavs and sos 'ards

From STEM, an abbreviation short for "Science, Technology, Engineering and Mathematics", a STEMlord is a pejorative term for a particular kind of person who has studied in these areas at university or works in these fields who holds a pretentious, condescending attitude to anyone who has studied in any other fields, particularly the Arts and Humanities. They typically believe themselves to be more "intelligent" and "rational", while generally remaining incredibly ignorant outside of their areas of expertise and having the charisma of a rotting pig's backside.

slang; generically used to signify an illicit substance that cannot be procured in any ordinary means by the general public. An essential prerequisite involves an uncharacteristically underground drug dealer who conceals him/herself in little conclaves on certain un-lit side roads, selling these aforementioned illicit substances.

Used by Kurnel Krool and JTG in the song 'Wacky Backy' which talks about mums smokin weed!