This is not the right attitude to bring in to the workplace. You'll have a range of people from executives, to clients to co-workers in other departments who don't know what UNIX, APIs and POSIX are. If you can't communicate technical matters nicely then you have not yet developed the right attitude for a professional working environment. It's the same thing with doctors when they create metaphors to explain complica…
Wrong: "Yep, I have UNIX experience!"
Right: "These days, the phrases 'UNIX' and 'UNIX-like systems' are used interchangeably. Please double check this with your hiring manager to confirm that we're on the same page."