net syndrome 

An addiction to the "Net," or the World Wide Web. Generally noticeable by lack of social skills. Used and coined by www.netsyndrome.net because Spydir Web r0xr0z j00r b0x0rz.

Dude you got the net syndrome.
FUCK YOU I'VE ONLY BE UP FOR 53 HOURS READING ALL THE COOL STUFF SPYDIR WEB HAS TO SAY ON WWW.NETSYNDROME.NET.
He doesn't say anything cool, dude.
...Fuck you.

net syndrome by Spydir Web July 5, 2004

Empty Net Syndrome 

This debilitating syndrome is caused when ones child/children suddenly cease to play hockey. It is almost exclusively experienced by people of Canadian descent. Symptoms can include inexplicable weeping, excessive consumption of poutine, and in unusually severe cases, visits to the local hockey rink in an attempt to socialize with the hockey crowd.

Don't make eye contact with her, she has a severe case of Empty Net Syndrome.

Empty Net Syndrome by Jafeica November 3, 2015

Open Net Syndrome (ONS) 

ONS is a widespread disease amongst the Rocket League community. ONS is defined as: When a player in Rocket League sees an open net and proceeds to miss which can lead to increased blood pressure, anxiety, and depression although symptoms do vary and can be as severe as "Choose to Forfeit". *There is currently no known cures available for this disease* Symptoms can start as early as when the open net is seen/anticipated or as late as after the open net is missed. Recovery time can take as long as a few seconds to a few days depending on the severity of the miss and the situation.

My 2's partner in Rocket League has Open Net Syndrome (ONS), if it is open I deep down expect them to miss...
Open Net Syndrome (ONS) explains why they always miss open nets.

Open Net Syndrome (ONS) by YT: TheOneTheOnly November 9, 2022

Empty Net Syndrome 

When your friends that are normally online to help you chat your way through your work day decide to go on vacation or get jobs where they can't be online anymore. Similar to empty nest, you feel very alone!

Chrisy: I'm going to New York for the week.
Kim: Oh i got a new job. I start today, so I wont be online anymore during work hours.
Jen: Screw you guys, I'm going to have a serious case of Empty Net Syndrome. :-(

Empty Net Syndrome by jenbertoni March 19, 2009