a cock that is 15"long,5" around, and ... well always floppy
tim got slaped in the face by ryans floppy donkey dick.
by pimp master ryan March 15, 2003
A dick that is so big, it dips into the water at the bottom of the toilet bowl!
by Spanky Lou June 17, 2003
Someone with a huge dick

Most like Floppy and as big as a donkeys

(Most Corbin’s an Logan’s don’t have this but your friend Mason does)
by NiggyBiggy 69 May 23, 2018
1) The large sexual organ a male donkey has

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.
Jack: (loudly) BIG FLOPPY DONKEY DICK!!!
Teacher: Get out Jack!!
Dave: Ha ha ha...
by Simon Young March 25, 2008
Its a phallus. Its most likely large, and quite floppish.
Also, used often do to the manner in which it rolls off the tongue.
I truly desire to be in posession of a big floppy donkey dick. Mines tiny and under-used.
by Big-Floppy-Donkey-Dickless September 30, 2003
something you yell out lound when you are a little bit angry
fricken floppy donkey dick, i got an F in english
by cole hill November 25, 2003