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)
Hey Johnny you busy?

Actually I am, I gotta help my mom check her email.

Can't she do that herself?

Nope, she's a 12 o'clock flasher...
by big bobs house of feces October 11, 2023
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