1 definition by cgl102770

Top Definition
The practice of sending a deranged, nonsensical instant message to someone immediately before logging off.
Below is an example of an "imbomb" as seen from the receivers instant message window.

ME: HI I'M GOING TO GO RAPE PELICANS NOW.
ME has signed off.
#facebomb #instant messaging #nonsensical #deranged #instant message bomb.
by cgl102770 March 12, 2011
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