I have a lot on my plate right now
It’s a subtle way of saying I’m over worked. Also, it’s used as an excuse not to work. We all have those coworkers who say they have a lot of their plate when all we see and hear them do is talk the day away. The ones who come into work and clock in/out without adding any value. However, it’s the former when the person looks like they haven’t had any sleep for weeks.