An individual who spends an excessive amount of time on the computer, also known as a geek. This individual has no life, likes animated porn such as hentai, and has a culture on worshipping a computer. This lifeform loves to attend "parties" also known as LAN parties where geeks get together to brag about their computer specs, handdrawn girlfriends and their 1337 (elite) skills in computer games. A lanner is also a forum whore who acts like a big man from behind his comp and argues on the internet; also acts like an "e-thug."
Lanners like to beat off to handdrawn "porn."