Like several other members of the "Yosenju" archetype, "Daibak" is based on the "Kamaitachi", a monster from Japanese folklore. These creatures are said to resemble weasels, and ride on whirlwinds while trying to cut passers-by. It is to this interpretation that this monster owes its weasel-like form.
This card's Japanese name, "大刃禍是/Daibakaze", is a play on words. As written, the characters roughly mean "large sword calamity righteousness". But "場風/bakaze", meaning "like the wind" is a term originating from mahjong that refers to a spiraling pattern or motion, like a whirlwind. Therefore, this card's name is also a homophone for "large whirlwind"