Poke Yoke

A native Japanese speaker at work has explained to me that Poke Yoke is in fact NOT Japanese for Idiot Proof in spite of its extensive use along those lines. He explains that by altering the pronunciation ever so slightly, to Poe-Kah Yo-Kay one gets to the actual inner meaning of the words.

Poe-Kah is the sound made when an irate parent raps a troublesome offspring on the head as punishment for an infraction. Probably similar to the sound you get when knocking on a hollow wooden door. Yo-Kay means “avoidance”.