Excuse invented by stoners to avoid doing any work. Similar to a hangover but induced by cannabis. Such excuses avoid questions from friends about long term job options or possibly, when the next illegal rave is.
I havn't been into school this week because i've woken up at 3pm with a massive stone over.
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.
The feeling you have the morning after a night of smoking pot, usually including feelings of drowsiness and sluggishness like a hangover, but unlike hangovers, there's an overall feeling of comfortability and contentment.
"Dude we smoked four bowls last night and I'm still kinda baked..."
stoneover: where you have consumed a large amount of weed the night b4 and u wake up in the morning still kinda stoned and feeling dizzy like a hangover. funny feeling, lasts all day.
Friend: whats wrong with you today?
Stoner: oh ive just got a massive stoneover aye.
Friend: oh yep.