rear back



rear back (third-person singular simple present rears back, present participle rearing back, simple past and past participle reared back)

  1. (of a quadruped, usually a horse) To stand on two rear legs, as an aggressive or fearful gesture.
  2. (of a person, by extension) To stand, pull back or otherwise reposition oneself, often as a sudden response to a change or in preparation for an imminent reaction.