'Super-cained' occurs to people smoking excessive amounts of pot. It is quite an intense high, as one will find oneself getting sucked into the centre of the earth. It's more intense than 'mashed,' much for intense than 'cained' and far more intense than just a 'high.'
"I... thiiiiiink I may be super-cained... AAAAARrrr!!"
by Rep August 24, 2004