brennan smoked some 5-7 at the party the other night
weed  0 of the 5 dash substance scale, at the lower end of the spectrum there's [word]5-5[/word] and [word]5-6[/word], and higher up is [word]5-8[/word]
"brennan smoked some 5-7 at the party the other night" What is the definition of "5-7"?