A person who fancies himself an expert in many things but whose expertise derives largely or solely from the internet. The shallowness of his/her knowledge base is often betrayed by obvious factual errors. (The antithesis of "Encyclopedia Brown", the fictional boy detective in the eponymous literary series.)
Jim: Did you know that scientists found vestigial wings in a mummified komodo dragon?
A manther, but ten years older. Guy + coyote = guyote. Usually hunt alone, preferring small, easily attainable game. May resort to scavenging if desperate. Are often difficult to remove from populated areas. Commonly attracted to, but easily intimidated by cougars.
I was playing pool with my buddy, Pel, when a couple of manthers, a cougar and a guyote with a gray ponytail came and tried to take our table.