To Shell

1. To remove the outer covering or shell of something.
2. To bombard, to fire projectiles at, especially with artillery.
3. (informal) To disburse or give up money, to pay. (Often used with out).
4. (intransitive) To fall off, as a shell, crust, etc.
5. (intransitive) To cast the shell, or exterior covering; to fall out of the pod or husk.

6. (computing, intransitive) To switch to a shell or command line.
7. To form shallow, irregular cracks (in a coating).
8. (topology) To form a shelling.