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1.
Someone so stupid when it comes to technology that they can't program any appliance in their house, thus they are always flashing "12:00."
"There is no way to get a 12:00 Flasher on the Internet! I've seen guys eat their own headsets trying!" - Wes from Three Dead Trolls In A Baggie, "Welcome to the Internet Help Desk"
by superslacker87 August 03, 2005
 
2.
Someone who is too lazy or too inept to set the clock on their VCR or other digital device that has a clock, but isn't a clock itself.
They are a couple of 12:00 flashers.
by Raziel Ja'Tier April 19, 2003
 
3.
Noun

Computer Help Desk Technician's public enemy #1. A person who is so inept with technology, everything in his/her house is flashing "12:00" at all times.
Computer Help Desk Technician: "Thank you for calling the Computer Help Desk, how may I help you?"
User: "Yeah. My internet ain't workin?"
Computer Help Desk Technician: "What browser are you using sir?"
User: "Windows XP"
Computer Help Desk Technician: "No no. Not your operating system, what do you use to go on the internet?"
User: "My laptop"
Computer Help Desk Technician: "Ok. Let's try this. When you go on the Internet, do you click on a big blue E? or a red fox?"
User: "I click on Start"
Computer Help Desk Technician: *Puts User on Hold* "Looks like we got a 12:00 Flasher here boys. I'll be skipping my lunch today"
by Figa Hunter November 07, 2013