He stood there, dumb as a sack of hammers, while everyone else figured out the puzzle.

Everyone at the meeting knew he was a sack o' shit, but nobody said anything.

At the music festival, a circle of teenagers passed their hacky sacks back and forth while laughing.

In the veterinary anatomy lab, the professor pointed out differences in size and texture among the ball sacks of different dog breeds.

After the picnic, the kids found a box of Hacky-Sacks and started teaching each other tricks.

The hikers packed lightweight bivouac sacks and set out before dawn.

The elves struggled to load the overflowing Santa sacks onto the sleigh before dawn.

Even though they were called sad sacks by their classmates, they ended up proving everyone wrong with their successful project.

The farmer loaded the halter-sacks onto the trailer before heading to the stable.

The costume designer had to pad the actor's bollock sacks to get the period silhouette right.