/ ʃæk; NAmE / noun , verb
■ noun
a small building, usually made of wood or metal, that has not been built well
■ verb
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PHRASAL VERBS
- shack up with sb | be shacked up with sb
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WORD ORIGIN
late 19th cent.: perhaps from Mexican jacal , Nahuatl xacatli wooden hut. The early sense of the verb was live in a shack (originally a US usage).