1. mod. out from under someone’s control; not manageable. The guy is wild. Completely out of pocket.
2. mod. [of expenses] small, incidental, not charged on a credit card. I was not able to get my out of pocket expenses reimbursed.
3. mod. out of the office; away from one’s desk; unavailable. (Alluding to a pager or cell phone being out of the user’s pocket, making the user unavailable.) Sorry. I was out of pocket when you called.