A term used when a well-endowed man replaces a donkey at a donkey show. The man is then expected to have sex with the woman/women instead of the donkey. Often occurs in Mexico or the Tucson, Arizona area when the donkey is no longer able to perform due to fatigue.
Everyone was looking forward to the donkey show, but the donkey had a heart attack right before it started. Randy stepped in and took care of business. That is how he got the nickname Big Donkey.

Don Felipe didn't want to lose out on the money the customers already paid so he replaced the burro with Big Donkey. Jimmy ended up getting the load of shame after watching the show in the alley.
by Chicago Joey Biscuits December 31, 2011
Get the Big Donkey mug.
a person who is a total jack ass or just plain asswhole
nate was bein a big floppy donkey doinker yesterday because he got rammed in the ass to hard
by floppy donkey doinker April 26, 2006
Get the big floppy donkey doinker mug.
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
Get the Big Floppy Donkey Dick mug.
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
Get the big floppy donkey dick mug.
Insult to someone who is a whore.
You see that slut. She's so nasty she would suck a big floppy donkey dick.
by Amanda Van Valkenburgh December 6, 2005
Get the big floppy donkey dick mug.