The books were printed with this definition:
Yes it does say this:
necklace (NOUN): "In South Africa, a name for a tyre filled with petrol which is placed round a person's neck and set on fire in order to kill that person."
The publisher Harper Collins said it was aware of the “inappropriate content" in the dictionary and all the copies had been removed from sale and destroyed.
A spokesman is quoted by the Mirror as saying: "As soon as we realised there was inappropriate content, it was withdrawn for sale.
"It was available in three forms and all have been pulped. It is no longer available from Harper Collins. If any are still around they are old copies being resold."