Answer: In the book ‘Lord of the Flies, the boys use a good deal of British slang from the 1950s. Here are the definitions of the slang words you mentioned:
“Wacco” means great or cool.
“Wizard” also means great or cool.
“Smashing” means outstandingly good or extraordinary.
“Sucks to your auntie” is a British expression of ridicule or contempt
Step-by-step explanation: