The maximum number of "goods" you can give when someone exclaims "How good is it?!"
Guy: Mate, did you see insert random movie here? How good is it?!
Other guy: It was ten goods!
the phrase “off the good tens” refers to the commonly known illicit drug; Percocet or “Percs”. the ten refers to the dosage, as 10mg is the most potent and highest dosage.
“Damn, this shit hittin’, I’m really off the good tens!”