(1) Anyone who rips you off via the internet
(2) Anyone who posts know-it-all, irritating, or bullying messages on internet bulletin boards
syn. flame, flamer, ass hole
2. That e-hole is always flaming on this bulletin board.
Note that people can be selective eholes -- not replying, say, to urban legends that are passed around.
Someone can also be rendered into an ehole by a busy schedule -- see the second example below.
(perhaps from John): Sorry I was such an ehole last week -- I was just swamped at work.