energy drink

US /ˈen.ɚ.dʒi ˌdrɪŋk/
UK /ˈen.ɚ.dʒi ˌdrɪŋk/
"energy drink" picture
1.

a beverage that contains stimulant drugs, most commonly caffeine, which is marketed as providing mental and physical stimulation

:
He grabbed an energy drink to stay awake during the night shift.
Many athletes consume energy drinks before a workout.