The title of this article is a nickname, call sign, or alias.

This article is about a subject that lacks an official name and was known only by its nickname, call sign, or alias.

"Which means I'd better come up with something brilliant and fast! Because with Chewie putting the finishing touches on that big bruiser below-- this is about to become a three-way contest!"
―Han Solo[src]

Big bruiser was the nickname Han Solo gave to one of his opponents in The Big Game. The big bruiser was a hulking green humanoid. He was felled by a blow from Chewbacca.