1. to worry or be anxious about something
Usage: informal; chiefly Australian and New Zealand English
2. to die or collapse from exhaustion or strain
Usage: informal; archaic or dialectal

Examples

• Don't cark about the exam—you've studied enough.
• She was carking over the deadline all week.
• He'll cark it if he keeps working so hard without rest.
• Stop carking and just enjoy the weekend.
• The old engine finally carked out after years of use.