1 definition by Yddib
In Australia a biddy is a two-for-one McDonald's voucher. It usually entitles the bearer to enjoy two delicious Big Macs for the price of one, but can apply to other items, such as fries and cheeseburgers.
Hey Cletis, some man in the street gave me a biddy! Looks like the whole family will be eating tonight!
by Yddib September 6, 2010