I can't get behind that - You’re saying you won’t back something because it’s too stup

You’re saying you won’t back something because it’s too stupid, too bad, or just doesn’t make sense. You’re not even trying to be cool about it.

'I can't get behind that plan. It’s like trying to cook a meal with a pencil and a banana.'

'I can't get behind that idea. It’s like trying to explain a joke to a baby.'

'I can't get behind that project. It’s like painting a house with a spoon.'