This is a phrase commonly used to describe something said during a conversation that can't be logically linked to anything that's already been said. It's a combo of "random" and "out of the blue" or "out of left field."
Sam: Xbox is pretty much the best thing ever invented!
Jake: You know what sucks? Getting acne on your ears.
Sam: Whoa. That was out of the random.
A hardo is a person who tries extremely hard at everything. Most times a hardo will try very hard at things that do not require excessive effort. For example, sports practices, gym class, etc.
Wow did you see Jack at practice today? What a hardo!