Also sometimes used to refer to a smoker e.g "Alrite Jinse?"
Originated in the early 21st century using a mixture of popular slang terms "jig" and "binse". 'Jig' meaning a cigarette and binse the popular slang reference at the time.
"Jinse?! Jinse?! Your not looking at the bigger picture!"
"Don't you worry about jinse, let me worry about jinse."