godan verb (-ru), intransitive verb
get high; become inebriated
Slang term originating from the antidepressant パキシル (Paxil), used to describe a state of intoxication or euphoria, often in a recreational or drug-related context.
あの薬を飲んだら、ちょっとパキった感じがした。
After taking that medicine, I felt a bit high.
He got high last night and was laughing the whole time.