Netglow
Someone (or something) that is better online than in real life.
I've met him in real life. He is really below average without the netglow.
Netglow
As in Brad Paisley's song "Online", when someone is "so much cooler on-line" that in person.
Only under netglow is he a 6'5" hulk with a black belt in Karate. In real-life he is a 5'3" overweight couch potato.