Stoner: oh ive just got a massive stoneover aye.
Friend: oh yep.
Unlike a hangover, you dont feel sick or unwell. Effects of a stoneover is genrally not being able to think straight or feeling generally a little fuzzy round the edges.
Like a hangover you wont always get one, just luck of the draw.
A. Im ok, just got a stoneover.
"Yeah man you've got a stoneover."