眠ねむ気け覚ざまし

noun

keeping oneself awake; fighting off drowsiness; method for staying awake

Refers to the act of staying awake or a specific method to ward off sleepiness, such as drinking coffee, splashing water on one's face, or taking a walk.

• 眠ねむ気け覚ざましにコーヒーを飲のんだ。

  I drank coffee to keep myself awake.

• 会かい議ぎ中ちゅう、眠ねむ気け覚ざましにメモを取とった。

  During the meeting, I took notes to fight off drowsiness.