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.
by cgl102770 March 12, 2011

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug