Up to (one's) eyeballs (in something) phrase
Very busy (with something); caught up in a particular unpleasant situation; given too much of something.
My siblings are always fighting, and no matter how I try to get rid of it, I'm always up to my eyeballs in it.
I'd like to give you a hand, but I'm up to my eyeballs at the moment.
Recently, I have been up to my eyeballs in work and had little time for my family.
1.(adj) Very busy
2. At maximum speed, efficiency, or power
Very busy
Being extremely busy or hardworking
To be told about and/or included in something, such as a plan or project, especially that which involves or relates to a particular group
To do or solve a variety of work or problems at the same time.
The origin of this phrase is not clear.