keyboard warrior

American  

[kee-bawrd wawr-ee-er, wor‐, kee-bohrd] / ˈkiˌbɔrd ˌwɔr i ər, ˌwɒr‐, ˈkiˌboʊrd /

noun

Informal.

1. a person who posts highly opinionated text and images online in an aggressive or abusive manner, often without revealing their own identity.

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Etymology

Origin of keyboard warrior

First recorded in 2005–10

Example Sentences

Back home afterward, reviewing things 15 different times in slow motion like so many keyboard warrior referees, I’ve downgraded my initial opinion somewhat.

From Seattle Times

Sister Bliss, from electronic outfit Faithless, described Fletcher as a "keyboard warrior" and tweeted that he was "gone way too soon".

From BBC

The court heard how winger Bolasie, now playing with Caykur Rizespor in Turkey, branded Thompson "a keyboard warrior" and "a rat" after receiving the online abuse in March last year.

From BBC

Patton described himself as a “keyboard warrior” in a battle to stop the proposal.

From Washington Post

His lawyer Tim Forte told jurors that while Cronjager accepted sending "vile" messages, in reality he was nothing more than a "keyboard warrior".

From BBC