A person who makes you wish you had the Bubonic Plague just so you could DIE and get away from them, but they stick like shit on your shoe. They are loutish and badly mannered. They have a horrible laugh. Passive aggressive types who truly believe that they are awesome. Other Gobes think they are fabulous. They love to PROVE you wrong. You daydream about ways they could get their comeuppance (sigh).
One who attempts to make another's life better against the will of the other. Oversimplified: one who meddles in another business, a busybody. Philosophically: one who considers his own intellect to encompass and exceed the intellect of another, thereby giving him the right and duty to control the life of another, for the other's own good.
My mom remained a gobermouch, always knowing what's best and tricking me into doing it, even after I turned 18.