# lash out on

CEFR B2 · Phrasal verb

Source: https://englishreference.com/word/lash-out-on
Updated: 2026-04-24

## Definition

to attack or criticize someone suddenly, often in anger — usually without thinking first.

For teachers: to strike or attack suddenly; can also mean to criticize harshly, often in a moment of anger or frustration; the preposition 'on' is less common than 'at' in this context.

## Examples

- He lashed out on his colleague during the meeting.
- After the argument, she lashed out on her friend for not supporting her.
- The politician lashed out on the media for their biased reporting, causing a scandal.

## Pitfalls

- Not "He lashed out at his colleague" but "He lashed out on his colleague" — the preposition 'on' is less common than 'at' but can be used in informal speech; learners may confuse the two.

## Usage notes

- typically followed by a person or group being attacked or criticized.
- Teaching tip: contrast with 'lash out at' (more common) and explain that 'on' is less standard but sometimes used in informal contexts.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.