neck-deep{adv.} or {adj. phr.}
1. Very much; deeply; having a big part in.
Johnny was knee-deep in trouble. 2. Very busy; working hard at.
We were neck-deep in homework before the exams. 3. Getting or having many or much.
The television station was knee-deep in phone calls. Compare: UP TO THE CHIN IN.
[TahlilGaran] English Idioms Dictionary ▲