Redonkulousaurus is an extension of the word "redonkulous," (popularized by the O.C.'s Seth Cohen) and serves to hyperbolize the already-supercharged fictional word. It was first used by Yula to describe her massive textbooks. Redonkulousaurus can be used as both a noun and adjective to describe something so utterly absurd, that it goes beyond the span of human imagination.
1. Something so ridiculous that it's par with the outrageousnesss of a Tijuana donkey show; a situation or circumstance that is beyond redonkulous.
2. A well-endowed man who's cock is as large as a donkey's, making copulation difficult or challenging.
1. - You’re not going to believe this! My ex-boyfriend dumped me because I wanted kids and he didn't - and now that he wants kids, he can't - he found out he's sterile!
- No way! That’s Tijuana redonkulous!
2. God that guy was Tijuana redonkulous - it took an entire tube of KY to get him in me and now my pussy resembles a Star Gate.