1)Typically one with so minuscule a penis, that it becomes imperative to roam the internet and pick random fights with other roamers. This can occur on any form of internet medium (e.g. Forums, online games, youtube etc.)
Generally, laptop gangsters are not gangsters at all, but no-lifes who never get laid and try to bully people on the net.
(i know. I know. But you you know it's true, you've seen what's called... lol.. an "internet fight".
NetSurfer1:"Oh wow, badassNaruto just called me a "noob" in this thread."
NetSurfer2: "ah so this is the Real Laptop Gangster..."