What is Barnsey?
1.
some who tells a shit story with no point or meaning and takes ages to tell it.
the BARNSEY- "did anyone see that ah movie with um that actor who ah u know"
anyone around yells: "BARNSEY!"
See
2.
Someone who can't handle anything which intoxicates the body and does stupid things on a regular basis.
"Dude, she got her tits out and pulled a total Barnsey."
See