To spend all one's time doing something; to be absorbed in something day in and day out (often used as '〜に明け暮れる').
彼は仕事に明け暮れて、休みの日も会社にいることが多い。
He spends all his time working and is often at the office even on days off.
夏は子どもたちが外で遊びに明け暮れる季節だ。
Summer is the season when children spend all day playing outside.
趣味に明け暮れる生活も悪くないが、たまには整理が必要だ。
Living absorbed in a hobby isn't bad, but sometimes you need to get organized.
To pass (of days); to indicate the passing of time or days.
年を取ると、月日が明け暮れるのが早く感じられる。
As you get older, the months and years seem to pass more quickly.
忙しさに追われ、気づけば季節が明け暮れていた。
Caught up in busyness, before I knew it the seasons had passed.