A person who's central intelligence specialises in hacking, explore the dark web and other illegal IT activities. A memetan person is normally someone who lacks a social life as he or she spends most of their free time on their IT devices.
The term used to describe a person or object that is from Edgware- an popular commercial area in London. This term is often used as an insult as most Edgwarians are poor, scummy immigrants from Scotland or Wales.