Cupboards and "Theory of Mind"
I hope this isn't considered off topic, but I have studied "Developmental Cognitive Psychology" and one of it fundamental paradigms or experimental examples involves a "cupboard". This is a test of "False Belief", which has to do with a childs "theory of mind" or how a child thinks _other people think_. Piaget was the pioneer whose research and philosophizing led up to, and made possible the historicallly following conceptualization of T of M.
Anyway I found a web explanation, this is at the bottom of the page before "sources":
http://pages.slc.edu/~ebj/IM_97/Lecture20/L20.html
"Wimmer & Perner (1983) tested three and four year olds ability to attribute a false belief to another in the context of a story that was acted out for them with dolls and toys. For example, in one scenario, a boy puts some chocolate in a drawer in the living room and goes out to play. While he is out his mother moves the chocolate to a cupboard in the kitchen. The children are then asked 'Where will the boy look for the chocolate when he comes back inside?' Four year olds say 'the drawer in the living room', but three years old typically answer 'the cupboard in the kitchen'. And so a field was born..."
There is also the "100 th monkey" theory. In Japan, it was found that washing of sweet potatoes in the ocean, by monkeys on separate islands, seemed to spread, without direct communication or example, after a critical mass of 99 monkeys seemed to have explored and adopted this functional behavior to remove sand and dirt etc on one island ( it isn't "programmed" as it might be in raccoons).
What I am saying here, is sort of the word "cupboard" was sort of in the air...or Jung's collective uncounscious, or even just a collective counsciousness like TV...
Then again, there have been really exceptional cases of people speaking complete conversational languages they never had exposure too.