(v) to move, especially down a hill, without using any power; to move quickly and smoothly, without using much power.
The car coasted along until it stopped.
She took her feet off the pedals and coasted downhill.
SNOW BIRD: Earlier this week, kids in Washington got into a giant inflatable flamingo sled and coasted down a snowy street.https://www.facebook.com/FoxNews/videos/387899788425218/?t=35