e9 - A Danish way to say you’re too lazy to think, so you just go

A Danish way to say you’re too lazy to think, so you just go with whatever someone else says. It’s like agreeing because you’re too tired to argue.

'E9? I'm too drunk to care.'

'E9? Bro, I'm just trying to survive this day.'

'E9? I said yes because I was too tired to say no.'