knackers

n. (Slang) testicles

n. seller of horse meat; person who slaughters horses; destroyer of shaky structures; old sick horse

A knacker is a person in the trade of rendering animals that are unfit for human consumption, such as work horses that have died in harness or are too tired to work any more. This leads to the slang expression "knackered" meaning very tired, or ready for the knacker’s yard, where old horses would be slaughtered and made into dog food and glue. The word is derived from the old Irish word for a horse (an each) pronounced a nack. From this is derived the word for a horse dealer (an eachoir) , pronounced a nack-ower anglicised to a knacker.
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Noun
1. someone who buys old buildings or ships and breaks them up to recover the materials in them
(hypernym) wrecker
2. someone who buys up old horses for slaughter
(hypernym) butcher, slaughterer

n. fogey, old-fashioned person, conservative; frankfurter, small smoked sausage containing beef or beef and pork

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