A person with no idea how to use any kind of technology. The joke is, all digital clocks, stereos, DVD players, VCRs and so on have their displays flashing 0:00 or 12:00 (twelve o'clock) because the person in question has no idea how to set the time, let alone use any other function offered.
{When standing behind someone at an ATM for a very long time} - What is taking him so long? He must be a twelve o'clock flasher..
I knew i was dealing with a twelve o'clock flasher when she put the CD in data side up.
Can you believe it?! He was trying to use his DVD-ROM to read a floppy! Bloody twelve o'clock flashers!
Someone who is technologically inept and or computer illiterate. Referring to an instance of a VCR or other home appliance or clock at that persons house constantly blinking "12:00" (likely for a while, due to their inability to set the item to its proper time)
On computer devices, when you go to click on a link or image the screen shifts or moves and you click on the wrong area sending you into a longer process than normal getting back to your original goal because all the other links are commercial ads that take you to pages that have to load a ton of crap.
Went to click on your post, but got clicklashed into a spamzone!
A trip to a grocery store, convenience store, or gas station for the sole purpose of buying an excessive amount of junk food and sugary drinks, usually with friends. A chud run often happens late at night and ends with everyone involved hating themselves afterwards.