Vehemence is the physical expression of the mighty angst experienced while typing words of rebuttal on the internet. The word is often used by itself, in a standalone all-caps sentence with no punctuation.
Example
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"So after he introduced himself, I was like 'who's this chode' and he was all 'zomg I'm the site owner who the fuck are you? VEHEMENCE'"
It Has Its Own Smiley
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Oddly enough, the smiley text is in lower case letters.