Banjonkers is an adjective usually used in place of words describing severe pain or surprise
Much like the word smurf it can mean mostly anything you'd like it to.
1.) That hard drive got so hot it burned the bajonkers out of my fingers when I picked it up.
2.) I turned the corner and ran into Pennywise. He scared the bajonkers out of me. Now I don't know where Georgie went.
An ‘ebonic’ expression for an extremely curvaceous female behind. Women who possess this feature usually have a small waist that violently explodes into a round and juicy posterior (e.g., 34c, 24, 38). Other characteristics would be moderately wide hips and a large amount of booty cleavage (i.e, depth of butt-crack).