I. ˈbəŋk noun
Etymology: probably short for bunker
Date: 1758
1.
a. : bunk bed
b. : a built-in bed (as on a ship) that is often one of a tier of berths
c. : a sleeping place
2. : a feeding trough for farm animals and especially cattle
II. verb
Date: 1840
intransitive verb
: to occupy a bunk or bed : stay the night
bunk ed with a friend for the night
transitive verb
: to provide with a bunk or bed
III. noun
Date: 1900
: bunkum , nonsense
IV. noun
Etymology: origin unknown
Date: circa 1870
British : a hurried departure or escape — usually used in the phrase do a bunk