The act of internally vandalising another persons unlogged out facebook page. This may involve changing any or all of the following: status, profile pic, relationship status, info column, comments, pages joint, etc.
Generally the greatest facebook bombing involves changes such that much of the user's friends don't realise the foul play involved.
An Atomic facebook bombing is similar but involves changing as many things as possible in the most offensive way possible.

one whose is constantly taking pictures of herself with a washed out camera phone. They usually bombard their facebooks with atleast 10 pics a day of with either their face, thier lackluster body or their dog, with home they cling to so tight his fleas beg for freedom. The sad people tend to think that others enjoy looking at pictures of their distorted faces with Mr. Ed teeth or their short hemline and ghastly white (not ghostly, but gastly) legs. A pic-ho is usually boring, but tries to over compensate with chirpy banter and talks of past husband and how much they are wanted by the local boys, but yet, they are always alone. Pic-ho's do not make good friends, you will always end up being tagged in some loathy album that your other friends may see.

A facebook comment on an album requesting the removal of an unflattering picture. As a result of this comment, the embarassing picture is sent to the news feed, bringing much more attention to the picture than if it were to be left un-commented.

A girl who looks like a complete 10 on facebook due to angle shots, photoshop, or hours trying to get that one picture that looks nothing like them in real life. These pictures are almost immediately made profile pictures and usually have cleavage for the world to see..However, in reality, these facebook dimes tend to be butterfaces or outright 5's or 6's.

the digital equivalent to 'make it public' as in when two people start bringing out any kind of r'ship in front of people- facebook is the first place they'd do so. Probably precedes real life flirt, fight, friendship whatever

When a individual or group of individuals use "Facebook friends" to find unsuspecting targets for conversation and flirting, but never actually plan on being in a relationship with them. Most look attractive in their profile pic, but only after hours of editing

The opposite of a Myspace Angle. Basically, it is a photo taken at such an angle that it makes an attractive person look less attractive. Lighting is very important in Facebook angles, as is subtle elements such as background, facial poses, etc.