Definition of sacks:
(n) :
a
bag; especially a large bag of strong, coarse material for storage and handling of various
commodities, such as potatoes, coal, coffee; or, a bag with handles used at a
supermarket, a
grocery sack; or, a small bag for small items, a
satchel; the
amount a sack holds
"i'm tired. I'm gonna hit the sack."
"he was sacked last September."