What is "roll down"

Usage examples of "roll down".

All we have to do is roll down the grenades and then go mop up whatever is left afterward.

Instead, he was startled to see a tear roll down God's cheek and disappear into the luxuriant white beard.

He shifted his stance slightly, letting his eyes roll down the thoroughfare where in the distance he thought he could hear the sound of engines but then again it might merely have been heightened apprehension.

He watched her eyes open languorously, and was surprised to see two giant tears roll down each cheek.

I put it in neutral, killed the engine, and began the long roll down.

Slowly, awed and enchanted, Mark let the Cadillac roll down the last curve of the driveway, and the light faint cries of female voices caught his attention.

Tears start to roll down his dirty, pallid face again, and Ty begins to scream at the top of his voice.