Definitionen
1.VerbTo set off an area or shape with chalk.
2.VerbTo record a score or event, as if on a chalkboard.
3.VerbTo disallow or cancel
4.VerbTo chalk (someone) up dismissively or jeeringly."We had chalked him off as an idiot!"
5.VerbTo dismiss or be dismissive towards (someone or something); to reject (someone or something)."He seemed like an idiot, so I chalked him off."
6.VerbTo deduct from something; to separate from something."The funds are going to be chalked off from the events fund."
7.VerbTo mark off (something).
8.VerbTo kill (someone).