David Melnarik got his mum to sit down on the Smash Bros. website and try to name every character in the game. Some of them, she knew! Most, she did not, but that didn't stop her from guessing (and in many cases improving on Nintendo's actual names).
It's similar to something from earlier in the year supposedly involving a six year-old girl, but this is a live recording, making it sound more real (and funnier in the process).
Not sure if Nintendo would sign off on either of Samus' names here, though.