群起而攻之
qún​qǐ'ér​gōng​zhī

to rise up and attack en masse

  1. 群起 qún​qǐ
    to rally together
    to rise up together in a group; for a crowd to take action as one
  2. 而 ér particleconjunction
    [adverbial linker]
    Connects an adverb-like description to the following verb to show the manner, cause, or basis of an action.
  3. 攻 gōng verbnoun
    to attack
    to attack; to assault; to launch an offensive
  4. 之 zhī pronoun
    it
    Used only in the object position to refer to a person or thing already mentioned, meaning "him", "her", "it", or "them".