[1] : The Collaborative International Dictionary of English v.0.48

whipping \whip"ping\,
   a  n. from whip, v.
   1913 webster

   whipping post, a post to which offenders are tied, to be
      legally whipped.
      1913 webster
see also:
whip whipping post 

[2] : WordNet (r) 2.0

whipping post
     n : post formerly used in public to which offenders are tied to
         be whipped

Binding Post >> B Words
Binding Post, definition of term: Binding Post
binding+post_pag1.html

Ex Post Facto >> E Words
Ex Post Facto, definition of term: Ex Post Facto
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Ex Post Facto L >> E Words
Ex Post Facto L, definition of term: Ex Post Facto L
ex+post+facto+l_pag1.html