The title of this article is conjectural; an official name for the article's subject has not been found, so it has been given a fitting title by the editors. If an official name is found, then the article should be moved to its appropriate title.
Big Frame Boos are larger variants of Frame Boos that appear in Yoshi's Woolly World and Poochy & Yoshi's Woolly World. They act the same way as a normal Frame Boo and can be stunned the same way with a Yarn Ball to turn them into a Boo-like Balloon, though they will break free after a few seconds.