When someone overly adds comments on facebook just so the post will be at the top of top news.
I'm sorry, but I'm totally comment bombing your thing lionel.
by somerandomasian March 16, 2011
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Whenever someone comments something stupid on your potentially fantastic facebook status which prevents it from getting any likes whatsoever.
Me: I just figured out how to divide by zero, I've cured cancer, and I was able to FC Through the fire and flames on GH3 on expert mode!

Grandma: I love you, sweetie! How are things going in high school?

Me thinking to myself: ...Comment-bomb...
by Rodson69 September 25, 2012
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To click the post comment button thousands of times to give someone thousands of comments on MySpace.
Suzan dumped me so I comment bombed her 3000 pictures of a fat guy in short shorts. Ha Ha Ha.
by Josh Roxxx May 20, 2007
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In short, killing a comment thread. This can occour many ways. A few examples are: going completely off-topic, posting a very long comment, or posting any comment that makes other commenters feel as if they just shouldn't add another comment. Comment bombs are often dropped by a thread killer.
Bob: "HAHA! Funny picture!"
Sarah: "Lol, I remember when this happened!! =)"
Jared: "I'm sorry, I just can't laugh at this right now. I'm so depressed."
Jared: "I feel so alone... Someone hold me"

Jared just went comment bombing.
by pseudonull June 27, 2009
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