To ambush a desired facebook friend with a friend request, taking would-be friend by surprise due to lack of real-world friendship. Synonymous with "ambook."
"Dude, that chick is so hot. I facebushed her so I could see all her pics and beat off to the good ones."

"Weird, that quiet kid in my French class facebushed me. He's totally creepy, but I guess I'll accept."
by Chrilex February 26, 2007
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It's when someone loses it on Facebook and starts mocking the innane entries by their so-called "Facebook Friends".

Also, similar to "Suicide by Cop", it is when a Facebook participant doesn't want to simple commit Facebook Suicide themselves, but wants to piss off enough of their friends that they all de-friend them.
Kouts is going crazy, He's facebushing all his current friends and Christos X. just de-friended him!

Did you see Kouts diss Christos X. by facebushing his existence and his posts?
by www.georgenation.com July 29, 2009
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The beard you've grown, while wasting time on social networking. Not specifically on one network called, you know how... But is the most popular.
Look at that facebush on your face! Have you been stalking online again?
by ampotant October 6, 2010
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The chin part of a gotee that becomes coarse and thick and mangled due to not trimming and/or unkemptness, resembling a jagged bush on one's face.
"Dude, you need to do something about that gotee, you got one hell of a facebush going on"

"You're collecting goop in your facebush"
by jakevo January 16, 2012
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