The phrase "to lash out" means to react with sudden and intense anger, often directed towards someone or something. It can also refer to an impulsive reaction without thinking through the consequences.
Sentences with «to lash out»
Some people can be very sick and do so with dignity and not lash out at loved ones. (myintimcity.com)
Kids can be rough, so the dog often lashes out in perceived self - defense. (pethelpful.com)
Children with reactive attachment disorder often refuse to follow rules and they may lash out against others with little empathy. (verywellmind.com)