When a woman grabs her ankles while sitting indian style, and rocks back onto her shoulders. While she's in this position, the guy stuffs her turkey like it's Thanksgiving, successfully completing the "Ken Adams".
This position has also been referred to as the "Crows Nest".
You can also stick it in her ass, but you may hit her kidneys.
"That bitch cramped up while I had her in the Ken Adams, I said fuck it, and pummeled that puss.."
One day my girl and I got into an argument after dinner, so I told her "BITCH SHUT THE FUCK UP OR I'LL PUT YOU IN THE KEN ADAMS.." She never questioned me again..