The act of getting so stoned you feel as if the weed smacked (clapped) you in the face.
“Nigga, last night I was so clapped I was about to jump off of a skyscraper.”
“I’m more than fucked, I’m clapped.”
Kyle: Oi bruv ur bear clapped init
Heaven-li: what does clapped mean
Kyle: it means ur clapped, ill set ur hair on fire