bunk down
/bˈʌŋk dˈaʊn/
/bˈʌŋk dˈaʊn/
Etymology
ScottishEnglish
The noun 'bunk' originally meant a narrow bed or sleeping berth on a ship, and dates back to the mid-1700s from Scottish origins. The phrasal verb 'bunk down' developed later as an informal way to say 'settle in for sleep', often in a temporary or rough spot.