In dictionaries:
gunny sack
Burlap bag for storing grains.
flour sack
Bags or sacks for flour range in size and material, from large bulk bags, in cotton or woven polypropylene, to smaller consumer packaging, often made of paper.
sad sack
Unhappy person with chronic misfortune.
sack lunch
Meal packed at home, portable.
sack race
Competitive hopping race in bags.
sack coat
Loose, casual mid-length jacket.
mail sack
sack cloth
sack races
Competitive hopping race in bags.
sack lunches
sack dress
Loose, shapeless dress without waist.
coal sack
Dark, dense interstellar dust cloud.
stuff sack
A simple drawstring bag, often used for storing compressed sleeping bags.
sack suit
Traditional, three-piece men's suit.
tow sack
Rustic, durable bag for carrying.
hacky sack
Small, kickable bag for footplay.
croker sack
Burlap bag used for storage.
sack dresses
Loose, shapeless dresses without waist.
more...