Kush usually refers to landrace (natural strains with little to no selective breeding) typical of the Hindu Kush region of indo-china.
"kush" is also a popular word applied to any dope by pot dealers. if youre buying dope from street dealers, your probably buyng cartel schwag (the brown-grey dirtweeed) or locally produced homegrown dope which is almost always a mix of random bagseeds with a heavy preponderance of Skunk.
if you bought "Kush" and it tasted like skunk, it was skunk with a fancy name to make is sound better than simply "local greenbud".
when dealing with aficionados and connoisseurs of cannabis, these words have specific meaning, which can be as simple as Lemon Haze (a "Haze" line cultivar with a distinct lemony scent) or Blueberry (which really does smell like blueberries) to less obvious references like Headband or the ever so ubiquitous "chronic"
as nobody has yet figured out a way to create a new species of plant from scratch, ever domesticated plant comers from landraces, from rice and maize to apples and bananas
your request for a definitive lexicon for all the dope names and where they come from is denied. that would be a lifetime's work.
but heres the data you brought up specifically:
Skunk: a fragrant (stinky) variety of a sativa and indica cross which is easy to grow, hardy and a good yielder of moderate quality highly profitable dope, a favorite of homegrowers all over the us and canada
Kush: as mentioned before usual;ly rtefers to the heavy limbed broaf leafed strains typical of the hindu kush. onomatopoeia results in this being overused as a trade name, usually with absolutely no cause. it just SOUNDS cool.
Cheese: another fragrant variety, which a strong scent reminiscent of welll.... yes, cheese.
Haze: a mostly sativa line popular with corssbreeders due to it's fast growth, heavy production of resin, (hence the name) and pleasant characteristics.
OG: a street born acronym for the words "Original Gangsta" but often used to indicate that the strain in question is "Old School" (a classic) for example "OG Purps" is a strain that was once fairly popular on the west coast, but then fell out of favour when "chronic" became the grower's choice. when the "chronic" fad faded, Purps came back as the "OG" weed (5 years out of the limelight make you an OG these days) while in some places it was re-released as "Granddaddy Purps" (for those of us who would not consider the term "OG" a selling point) meanwhile, some varieties have been recrossed and re-released under the same nam so many times you have to start putting numbers on them. (like Skunk and Lowryder)
Deisel: popular on the east coast, noted for it's strong scent of diesel fuel (no shit, it usually is that siimple)
the various fruity scents are the result of selective breeding, rsulting in a scent profile (and flavour) which is unique, and hopefully pleasing. i doubt anyone but tommy chong would smoke weed that smelled and tasted like dog shit.
