The word origionated with Mr.T. Due to the extended contact with cheap substitute gold, he can no longer tell the difference between anybody he meets. In order to save himself the humiliation of asking who he's talking to, he simply refers to anyone and every one as 'foo' or 'sucka'.
"Dial 1-800-COLLECT, foo!"
If something or someone is odd in behavior, action, or just existance
Out of the ordinary
2)That clock is so Foo, its tilted 25 degrees off center.
3)Why are there 4 coffe cups full of water in that microwave? Foo much..