adj; an expression of the word "ridiculous" but to a much larger degree; often used whilst under the influence of intoxicating agents such as alcohol; used to express a range of emotions included but not limited to: being impressed, fright, awe, amusement, disgust, surprise, appreciation, basic interest in, depression, frustration and negativity
"He did a back flip with one leg?! That is redonkulous!"
"Are you really that shocked that Angela is a redonkulous crack-whore?"
Scholars maintain that this word was first coined somwhere in the deep south in early 1997.
Person A: "Man you won't believe this shit. So I get some from work today and my sister's watching the OC, and some fucker on there's using the word redonkulous"
Person B: "That's fucking redonkulous. They can't say that word. That's our word! That's our word."