2) A colloquial term for a gentleman's large phallus
3) A variation upon the British game 'Bogies' wherein members of the class/group have to shout 'Big Floppy Donkey Dick' as loudly as possible without either being caught doing so or getting embarresed in the process. The winner is the person who shouts it the loudest.
Teacher: Get out Jack!!
Dave: Ha ha ha...