Ma'alsh
It's when you act like you don't care, but you're actually trying to look like you care a tiny bit, even though you're still a total waste of oxygen.
'I don't care if the project fails, but I'm still here trying to look like I do.'
'I don't care about the exam, but I'm still here pretending I do.'
'I don't care if you fail, but I'm still here trying to look like I do.'