Going Caps

The act of typing words or sentences in all capital letters to express anger or frustration.

Dude, I realize you're upset that McDonald's gave you fries instead of pie, but it's nothing to go caps over.

Calm down Fred, you're going caps on me.

going all caps on someone

When one becomes so enraged that they shout at someone online through email, text, or social media by using all capital letters. Quite often overuse of exclamation points will accompany the text.

FUCK YOU, YOU FUCKING FUCK!!! is an example of "going all caps on someone"

Going All Caps Lock

Speaking in caps lock over the internet to show anger.

Me: I CANNOT BELIEVE YOU WOULD THAT OMG WHAT THE HECK
Him: Woah woah, why you going all caps lock on me.