Lamer

To be a lamer means to be a clueless, ignorant, or uncurious person. While the term is now fairly synonymous with loser, it was originally used in techie and hacker culture to refer to someone who did not understand coding, hacking, or computers.

In the Internet era, lamer can be applied to anyone who doesn't understand a particular topic or typical netiquette. It can also be applied to someone who is just plain uncool.