Insane -________- afflicted with or characteristic of mental derangement , very foolish

This dude is crazy! Listening to his manipulative wife, he done messed up. Shame shame, he don't have a mind of his own, he getting brain washed. At first he was cool and then all this talk about being king, he lost his b-a-n-a-n-a-s. He's bananas b-a-n-a-n-a-s... ;)