lash out
lash out {v.}
1. To kick.
The horse lashed out at the man behind him.
2. To try suddenly to hit.
The woman lashed out at the crowd with her umbrella.
3. To attack with words.
The senator lashed out at the administration.
The school newspaper lashed out at the unfriendly way some students treated the visiting team.
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Source: A Dictionary of American Idioms