1. A person who comments on blogs, newspaper articles, or something similar, but does not necessarily go as far as writing a full blog, or replying via "blogging" to respond. A comment can be as long or as short as you would like it or are limited to. Full sentences and paragraphs are ok, while versions of shorthand would also be ok in most scenarios.

2. A person who hits the "Comment" button associated with many social networking sites and actions reported to you by other users.

3. Do not get this confused with a troll. This person does not specifically have an agenda to drive the conversation or even one other user either way, but this person is also welcome to leave their opinion in one comment.

4. A comment can be of any size and us usually dictated by the parameters of the box one is given to write or mark comments in.
EXAMPLE OF COMMENTING ON SOMEONES STATUS ON A SOCIAL NETWORKING SITE
"Blue is a color" <Click to comment>

EXAMPLE OF A NEWSPAPER OR NEWS SITE:
"The Rain Fell Today in Chicago --
So much rain for the Windy City, this feels like a small hurricane -- Signed, local newswoman" <Click to leave comments>
<comment by commenter 1> "Dumb news story -CMNT"

EXAMPLE OF A SUGGESTION COMMENT BOX:
"Please place suggestions in the box."
by Jim Wordism April 26, 2009
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Half the humor on urbandictionary.com was formerly found in the "comments" section. Conversely, their removal has made this site one half less funny, one half less entertaining to visit, and one half more retarded
by tehfixedlol April 18, 2009
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When the thread from the original comment is commandeered by another party or parties.
"Lisa made a great point but it got lost when a couple of guys commenteered it to argue."
by Grant Moore June 14, 2008
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The reply to a question that you wish not to answer due to the inconvenience that your response may incriminate you in one way or another.
Girl #1- "Do you like Matt's new hair cut?"
Girl #2- "...no comment"

Girl #1-"You and Josh were upstairs for a while last night! What the hell were you two doing?"
Girl #2-"No Comment"
by R.N. June 18, 2007
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Someone who makes a lot of comments with a non stop attitude to ever stop commenting on this first thing you commented.
"Man your so commental today, cut it out."

by Mrhockey February 18, 2009
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The thing you say when you have something to hide and don't know what else to say
"Daddy, are you cheating on Mommy?
"Uhm, No comment."
by D-Monkey April 10, 2018
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Michelle: So I went into Wal-Mart and there was a lady in her bikini buying her son a...

Hannah: If she had the audacity...

Michelle: Excuse me?

Hannah: Sorry I was just commentating.
by HannahJ9 August 13, 2012
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