Brunhilde is a common (and insulting) way (in some parts of the country) to refer to a big Germanic looking woman. Comes from the sterotypical casting of big women to play operatic Valkyries.

Big Apricot Superman Movieverse
The World of Lois & Clark
Richard White to Lois Lane: Lois, Superman is afraid of you. What chance has Clark Kent got? - After the Storm