An ass so big, round and perfect that it's just off the scale, to the point of being ridiculous. And/or any flagrant action performed by somebody in possession of such a badonk, especially when the action features said badonk.
Man did you see that Nicki Minaj new video? Badonkulous!
the quality of a female having a rear-end so large and bubbly it makes an OG
wanna cry. (combination of "badonkadonk
first block hood: "w3rd
suhn shawty was badonkulous! that booty
was bangin suhn!"
second block hood: "w3rd ^ yo i tapped her last night shyt WAS badonkulous"
the quality and or asset of having a rather large and juicy, quite bubbly and perfect ass
-et. So much so that it wanna make a OG
wanna cry. or holla
. at least thru myspace
. Also, "amazing" if it has anything to do with getting booty
tatis ass is badonkulous. scratch that, her body is badonkulous. then agen, my saturdays with her are badonkulous too.
"That shit was badonkulous!"
"That bitch is badonkulous!"