The several hundred facebook updates that fill up your inbox when you "Like" or reply to a comment that then becomes a source of heavy debate.
I received 53 emails, and I thought some of them might have been useful; actually I'd just been facebombed.
by Plastercaster May 7, 2010
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The act of taking a picture that contains a funny or strange face and photoshopping that face onto the other people in the picture.
Guy: Hey, check out this picture of Kyle at the party. He looks like he shat himself. I'm gonna facebomb this.
-some time later-

Guy: hey, look what I did.

Girl: Oh my god, they all have that face, thats so funny!

Guy: Yeah, these party pics are facebombing gold.
by MistaBojangles3 February 26, 2010
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One who "bombs" your Facebook News Feed with multiple status updates, link/video posts, picture uploads, Foursquare check-ins, etc. Basically someone with no life.
I know all the details of Ryan's day, including his bathroom breaks, because he is a FaceBomber.
by ILLbehaved May 29, 2010
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An attention-seeking act where a person uses facebook to announce something of significant personal importance such as an engagement, pregnancy or even the death of a loved one.

In many cases people will deliberately withhold the news in conversations with friends so as to not reduce the sensationalism of their announcement.

This is totally gay.
Facebook: **** **** is engaged to ***** ******
Sophie: OMG congrats xxxxx
Jenny:OMGZ that's soooo great xxx
Me: How come you didn't mention that yesterday when we spent the day together? Facebombing?
by Rude McDude June 21, 2010
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Commenting on every new story on Facebook list while drunk.
Damn, last night I was drunk and I think I did a facebomb! Shit everyone on Facebook hates me now!
by ,_\ ( ) |-| /\/ November 7, 2011
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To ambush, hijack, sabotage or publicly defile another person's profile.
After their breakup, Lily facebombed Nick, posting embarassing photos and videos on his wall.
by nowhy February 15, 2011
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When your face gets picked out the crowd in a photograph when you were'nt paying attention and gets highlighted on facebook.
These photos tend to be less than attractive and usually lead to some embarrasment. ie. if you were just about to sneeze
Ah man, I got facebombed at the slug in Bournemouth last night now my face is all over the internet. FML.
by Shamrockjkf September 5, 2013
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