He's not selling it to anyone, so trademarks are irrelevant. And on top of that, I said roll-aboard, which isn't the same as rollaboard. The bag rolls...wait for it...aboard the plane.

Rollerboard makes no sense, and is a eggcorn of the words "roll" and "aboard." It's in the same category as "tow the line" and "for all intensive purposes." (It's "toe the line," and "for all intents and purposes.")

I'm not sure why I'm writing this, of course. Half the people on here think that lose is spelled "loose."