get (one's) head down
1. To take a nap. I just need to get my head down for a few minutes, so that I don't fall asleep at my desk.
2. To put forth effort on a task that involves reading or writing. If you just get your head down, you'll finish your paper much faster.
get your head down
1. If you get your head down, you concentrate and work hard at something. I could really do with getting my head down and finishing this chapter.
2. If you get your head down, you go to sleep. I'm going to get my head down for a bit. Compare with keep your head down.
get your head down
1 sleep. 2 concentrate on the task in hand. British informalget your ˈhead down
(informal)
1 work or study hard: If you want to pass that French exam, you’ll have to get your head down.
2 go to bed and sleep: It’s time to get our heads down; we have to be up early tomorrow morning.