It is a ridiculously large badonkadonk. It is a combination of the two words: ridiculous and badonkadonk.
by Manny G 3 February 15, 2008
Paul: Oh my god! Did you see that crash, that was Ridonkulous!
Will: Nah man that was Ridicadonkulous!
Will: Nah man that was Ridicadonkulous!
by The Walrus69 April 9, 2010