There are only two proper responses:
ahachna (pronounced a HACH na) meaning, NO, i am not stoned,
A BIDAY MOO (pronounced AYE BIH DAY MOOOOOooo with the mooo drawn out in proportion to ones stonedness) - meaning, yes indeed i am quite stoned.
other acceptable responses might also include details about the degree of stonedness which one has personally achieved or is experiencing.
we have: stoned, meaning, STONED
gargotzed, meaning, quite stoned
y: ahachna! hook a brova up!
x: a biddy biddy may?
y: a bih day moooooooooooooooooooo i am totally gargotzed