To shed or fall, as corn or grain at harvest.
- A small, crudely built cabin; a shanty.
- To live or dwell: farm hands shacking in bunkhouses.
- shack up Slang To sleep together or live in sexual intimacy without being married.
- shack up Slang To live, room, or stay at a place: I'm shacking up with my cousin till I find a place of my own.