One who uses the internet as a front for acting like a tough guy gang member, usually because they are hoping to gain the respect that they lack in their real life.
Sometimes say things like "ya'll white ass crackaz would get shot if ya came to my hood nigga" when they are really just a skinny, middle class white loser who lives with their mum in the suburbs.
For excellent examples of internet gangsters, check out Yahho chatrooms/groups/gangland room, and also YouTube.
That internet gangster is hilarious
An True Internet Gangster is one who strives to make the most out of their time they spend online to exploit niche markets, discover new niche markets, run auto blogs, make ebay and amazon their bitch and turn it into real cash money.
Not to be confused with the idiots who act tough online.
That dude been making like 4 to 5k a month online, hes a real internet gangster.
One who, if you didn't know said character, you'd think to be a real tough person, a vicious attack dog if you will based upon their lack of reservation about the ballsy comments they make. Don't be fooled. This person is a sham. This person is not actually an attack dog, they are a timid house cat.
When you confront them in person they will hide behind their other friends, even attempt to amend things and get closer to you through your other friends, gfs, bfs. In fact when you confront them about being an Internet Gangster.. They will shrug their shoulders, turn around, and walk away. Like a punk.
She had a lot to say on facebook... but whenever we see her in person she can't even look at us and typically runs away, she is definitely an internet gangster.