The phrase often symbolizes managing lots of responsibilities like juggling multiple tasks. With his finals and part-time job, he certainly has enough on his plate.
Pro Tip 2/3
Casual Context
It's commonly used in everyday conversation, not typically in formal situations. Sorry, I can't join the committee right now — I have too much on my plate.
Pro Tip 3/3
Emotional Weight
Can indicate feeling stressed or overwhelmed, not just physically busy. Ever since the move, they've had a lot on their plate and seem stressed.