e-thumb

noun2

1. •
   (US) A natural skill for tinkering with electronics or computers.

   • Oh, I'll never have an e-thumb, no matter how long I stay at it. Nothing ever seems to work for me. Every program I launch crashes.
2. •
   (US) A person with this skill.

   • I should ask the e-thumb next door what he recommends for my BSOD.