I see what you're talking about
You hear something and you’re like, ‘I get it, but I’m not going to pretend I do.’ It’s like telling the person, ‘You can keep talking, but I’m not going to be fooled.’
'I know what you’re saying, but I’m not going to act like I do.'
'I get it, but I’m not going to argue with you.'
'You’re talking about your weird job, and I’m not going to pretend I understand it.'