nah he’s tweakin
When someone makes a dumb decision, people say 'Nah he tweakin.' It’s like a swear word for someone who is high on meth and acting stupid.
A kid says 'Nah he tweakin' to his friend who ate the last donut.
A dad yells 'Nah he tweakin' at his son for getting a D on a test.
A teacher says 'Nah he tweakin' to a student who talked back.