chalk off

Meanings

1. To set off an area or shape with chalk.
2. To record a score or event, as if on a chalkboard.
3. To disallow or cancel
4. To chalk (someone) up dismissively or jeeringly.
5. To dismiss or be dismissive towards (someone or something); to reject (someone or something).
6. To deduct from something; to separate from something.
7. To mark off (something).
8. To kill (someone).