What is the meaning of Shack?

A crude, roughly built hut or cabin.

Any poorly constructed or poorly furnished building.

The room from which a ham radio operator transmits.

To live (in or with); to shack up.

Grain fallen to the ground and left after harvest.

Nuts which have fallen to the ground.

Freedom to pasturage in order to feed upon shack.

A shiftless fellow; a low, itinerant beggar; a vagabond; a tramp.

Bait that can be picked up at sea.

A drink, especially an alcoholic one.

To shed or fall, as corn or grain at harvest.

To feed in stubble, or upon waste.

To wander as a vagabond or tramp.

To hibernate; to go into winter quarters.

To drink, especially alcohol.

Exhausted, worn out, extremely tired.

Tough and exhausting.

Source: wiktionary.org