British Slang: Knackered

Knackered ['næk.əd]

• Exhausted, tired.
• Worn out, broken down, exhausted, finished.

It is used as slang primarily in the United Kingdom and less frequently in Australia, New Zealand, and Newfoundland. It is very rarely used in North America.

Definitions from the English-Bulgarian Dictionary:

Knacker ['nækə]

• A buyer of old horses for slaughter or of old buildings, ships, etc. for their materials.

Knack [næk]

• Skill, technique, ease, trick.
• Habit.
• Method, way.
• archaic Toy, trinket, knickknack.

Examples:

I was knackered when I got in from work.

She was too knackered to join them for dinner.

I'm absolutely knackered, so no pub-crawling for me tonight.

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