Zweihander

The Zweihander is a sword in all of the "Dark Souls" video games. The Zweihander is in the ultra greatsword class, and was made popular, not just because it's good, but also by the dark souls meme "GiantDad", a legendary creature who wields the mighty Zweihander.

Person 1: "Holy shit, is that a Zweihander?!"
Person 2: "You bet"