look up any word, like bae:
 
2.
When another person becomes raged while on the computer and attempts to fight with words over the internet.
Man that dude seems really tough" "No its all just keyboard courage
by Big_Jon_From_Tomball June 21, 2011
 
1.
Main Entry: Keyboard-courage
Pronunciation: 'kE-"bord-'k&r-ij
Function: noun
descriptive quality: 1: A quality or characteristic displayed by a person through the written word that this person would not ordinarily possess. 2: The confrontational attitude exhibited by someone via an anonymous entry to an internet web-page or posting. 3: An attitude demonstrated by someone when they realize that actions taken by them or words written by them across a computer connection will have little, if any, personal repercussions. 4: A false bravery possessed by an individual who does not possess the true quality in person.
Chat room person 1: I think wrestling is all fake, those guys couldn’t fight their way out of a wet paper bag.

Chat room person 2: Yo, real or not, these guys are big and powerful. They could probably use you as a fish bait.

Chat room person 1: Up yours, ass-wad! If these monitors weren’t between us, I’d wire my mouse through your eye-sockets! You waste of money-shot fluid! Who do you think you are?!

Chat room person 2: Terry Hogan, man. You got a lot of Keyboard courage going on, where do you live?

Chat room person 1: ………(staring blankly at screen, sweat rolling down forehead) ………… ………… ………… ……..uh………China. Yeah, that’s it, China……….(shutting down computer, and jumping in bed with a stuffed animal).
by D. Wulf July 30, 2006
 
3.
Hiding behind a false name to send ugly, scurrilous, or threading messages on blogs, Twitter, and/or e@mails — lacking the courage to make such statements in person or, at least, use ones real name allowing another a place to respond.
The cowards who created false Facebook pages to send messages threatening President Obama are exhibiting keyboard courage.
by lwc30326 October 05, 2009
 
4.
The act of being tougher than your normal self when posting/responding to anything on the interwebs.

Being a proper and utter douchebag online. False bravado on steroids.
That troll has some keyboard courage to talk that much crap.
by Manderstanding April 16, 2013
 
5.
When someone who is shy in person becomes very friendly or outgoing on a social network such as Facebook.
Girl: Johnny finally asked me out by sending me a Facebook message.
Friend: Hmm...seems he had a case of keyboard courage.
by jessputput November 18, 2010