That's also the motive of the @OP to start this whole game that members could learn lot of different terms associated with bitcoin and it's their responsibility to find the real meaning behind these terms and gain knowledge about them even if you guessed it wrong.You will be familiar with all these terms in future and those who are answering it have the knowledge about them like @cygan which is why it seems too easy for him to brainstorm all of them.Learn bit by bit but must do it.