Someone who is obsesively curious about what their neighbour is WRITING or WATCHING next to them in a Internet café or public space.

(composite word: Net and 'Mettere',Italian for to put,introduce.)
"I'm so fucking FED UP with feeling GUILTY about having a hard-on just 'cause some wanky NETMETTER's spying MY favourite Porn Site!!"
by paganroman July 5, 2007
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