The form nicknamed Tou tao 偷桃， is Bai Yuan Tou Tao 白猿偷桃 White Ape Steals the Peach which can be traced back to Seven Star Mantis style。It comes from the technique Qi Shen Bai Yuan Tou Tao 起身白猿偷桃。which can be translated simply as raise the body white ape steals the peach.
The technique name can be found in the forms of most families version of Zhao Yao 摘要一段 (seven star, Taiji, Meihua).
The technique itself is a version of gou Lou cai 勾摟採 done on the neck of the opponent. It is also recorded in old hand written manuals of which I have already written several articles on.
Peaches means the head. It does not mean the groin.

But, what is truly interesting is the identity of white ape. General Han Tong. Source of Beng Bu and Luanjie. That's where the fun begins.