IDIOMS

Aunt Sally

(idiomatic) A figure drawing criticism or ridicule; a straw man.

Example: A traditional game in which balls are thrown to break the pipe in the mouth of a figurine resembling an old woman.
1913, DH Lawrence, Sons and Lovers, chapter 1
  Mrs. Morel did not like the wakes. There were two sets of horses, one going by steam, one pulled round by a pony; three organs were grinding, and there came odd cracks of pistol-shots, fearful screeching of the cocoanut man's rattle, shouts of the Aunt Sally man, screeches from the peep-show lady.
2008, The Economist, Manmohan Singh's burning ambition
  IN FOUR years as India's prime minister, Manmohan Singh has come to resemble a bearded and turbaned Aunt Sally.
2013, Irish Examiner Stakes couldn't be higher
  The finance minister, a true Aunt Sally figure, was dispatched to Moscow in search of backing.