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.

---

Etymology

Origin of keyboard warrior

First recorded in 2005–10

Example Sentences

A defence barrister for McGreevy said his client was not a "political ideologue" but rather a "lonely keyboard warrior".

From BBC

I’ve also begun pointing out how easy it is to be a keyboard warrior when your identity is hidden.

From Slate

The thing is, it is easier to be a keyboard warrior than it is to get into in-person confrontations.

From Slate

"Conor McGregor wants to come in and make a joke out of our art form… he can see me on stage but he's too shook to do that, he'd rather hide up in his gold palace and be a keyboard warrior."

From BBC

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