An aggressive, or excited attitude characterized by its loudness. The term originates from electronic communication. Sentences and words spelled with the Caps Lock
button turned on --in other words, all upper-
case-- is the modern written equivalent of shouting at someone. It usually signifies
anger, or sometimes intense excitement.
Kelly looked at Lisa incredulously. For a moment she was speechless. "WHAT THE
HELL?! HOW COME YOU CAN'T MAKE IT TO JAKE'S BIRTHDAY PARTY?!" Lisa, startled by
Kelly's shouting, replied, "Why you gotta get all caps lock on me?!"