Reminds me of official aviation-speak where "takeoff power" means firewall the throttle, for things like taking off. Until one day the copilot heard it as "take off power" and chopped the throttle, resulting in a crash. Military aviation had to learn that the hard way, too.

These sort of mistakes seem stupidly obvious, but it's only when you see it. For example, on Windows 95 the "turn off" button was infamously labeled "Start".