noun
mechanical ineptitude; being hopeless with machines
Describes a person who is bad at operating or understanding machines, gadgets, or mechanical devices. Often used self-deprecatingly.
私は機械音痴で、スマホの設定もよくわからない。
I'm hopeless with machines and can't even figure out my smartphone settings.
彼は機械音痴
He's so mechanically inept that even if he buys a new computer, he can't use it.