speedyshell
nounUK /ˈspiːdiʃel/
US /ˈspiːdiʃel/
A speedy shell is a fast shell that moves quickly.
The little crab hid inside its speedyshell and zoomed across the sand.
OTHER MEANINGS
2. A nickname for a very fast turtle or tortoise.
Everyone cheered for Speedyshell as he won the race.
3. A computer program that runs commands very quickly.
He typed the command into speedyshell and it finished in a second.
4. A toy shell that rolls fast on the floor.
My speedyshell rolled under the couch.