e-thumb

Noun

 * 1)  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.
 * 1)  A person with this skill.
 * I should ask the e-thumb next door what he recommends for my BSOD.