Lash out on
Definition 1 of 2
Pro Tip 1/3Sudden Anger
Used when someone can't control their anger and reacts instantly. 
Out of nowhere, he lashed out on the referee.
Pro Tip 2/3Negative Emotion
Shows strong and negative feelings towards someone or something. 
She lashed out on the news about the policy changes.
Pro Tip 3/3Potential Overreaction
Might imply the reaction is more intense than expected or reasonable. 
He lashed out on his friend for a small mistake.