EDUCATION

(být v něčem) až po uši, (mít něčeho) po krk

Right now I’m up to my eyes in work.  google

Normally I'm up to my eyes in the kitchen but because I've
been on a diet I really find time hangs heavily on my hands. Google

As it is, I'm up to my eyes in writing,
and it's all piling up to be polished and sent. 2 am.  Google