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1.
Using caps lock text in order to convey serious anger, outrage, sadness or grief. origin: Harry Potter and his outrageous CAPS LOCK YELLING throughout the series, but particularly in book 5.
john: i don't think we should see each other any more
jane: WHAT? YOU DON'T WANT TO SEE ME ANYMORE, YOU'RE A FUCKING WANKER THAT'S WHAT YOU ARE.
john: woah settle down, don't go all caps lock harry on me.
by mofee November 10, 2009
 
2.
1) Generation of Angsty, Emo Teenagers

2) Needless yelling.

3) Yelling and Complaining all the time.

In reference to Book 5:Order of the Phoenix of Harry Potter Series;In which Harry is angsty for nearly the whole book, and needless screams at friends or superiors in almost every volume.
SAMPLE 1: Capslock Harry will be the definition for the youth of today.

SAMPLE 2:

Person1: Hey, quit it with the Capslock Harry, I'm on your side.
Person2: Sorry, pms.
by erisdoll June 09, 2009