inferior, rubbishy, useless. Derives from Australian similes such as 'as silly as a two bob watch'; explained by G.A. Wilkes in A Dictionary of Australian Colloquialisms, 1978, as the sum of money most often used in derogatory expressions of worth. A BOB is 'a shilling' in pre-decimal currency (5p for what it's worth, 5c in Australia). It compares with US TWO BIT and UK 'two penny' AUSTRALIA, 1944

the sum of two shillings. After decimal currency was introduced in 1966, used for the sum of twenty cents AUSTRALIA, 1934.► have two bob each wayto have all contingencies working for you; to hedge your bets AUSTRALIA, 1973