Boony was known for his portly figure and distinctive moustache. His international playing career spanned the years 1984–1995, Boony scored over 7,000 runs at Test level, cricket and made over 100 appearance for both the Test and One Day International Australian side. After leaving the international game he went to England to captain Durham before retiring to become a national selector.
Boony was a right-handed batsman and a very occasional off-spin bowler, he also played First-class cricket for his home state of Tasmania. At the age of 17, David Boon made his first-class debut for Tasmania during the state's second season of Sheffield Shield cricket, 1978-79.
Boony is a legendary Australian Cricketer, but also a legend for his drinking exploits. He is alleged to have once consumed 52 cans of beer on a flight from Sydney to London in 1989, in a story that is considered by some to be part of Australian sporting legend. This has never been confirmed by Boon however though Geoff Lawson did confirm it.