out of your tree
out of (one's) tree
slang Crazy. After yet another sleepless night, I'm starting to feel like I'm out of my tree. He's out of his tree if he thinks this plan is going to work!
out of your treeINFORMAL
1. If someone is out of their tree, they are crazy or behaving very strangely. `I'm going out of my tree with this.' — `Honey, don't let it get you down.'
2. If someone is out of their tree, they are unable to act normally because they have taken drugs or drunk a lot of alcohol. It was obvious they had taken something. They were both out of their tree.