Otherwise the formal spelling of, redonkadonk
, is derived from both redonkulous
; hence coupling verbal and visual absurdity together in order to portray something (emotionally and/or physically) unfathomably disturbing, amazing, or - in many cases - both.
Did I tell you about the time I saw Pat Robertson at a strip club getting a lapdance and screaming, "Hallelujah!!"? ...Yeah...Redonk-a-donk.