tech-twat
An adult, usually a parent, who pretends to know it all about computers and yet usually installs shitty antivirus software, use nothing but Internet Explorer, have their computers run on Windows XP, and use Yahoo as their default search engine.
Dad: Hey son! I just installed this new, free antivirus software called Spy Sherrif, and it said you have 43 viruses! I'm just gonna click fix now...
Son: DAD! THAT'S A FAKE ANTIVIRUS, YOU TECH-TWAT!
Son: DAD! THAT'S A FAKE ANTIVIRUS, YOU TECH-TWAT!