A brub-brub bush is a spiky type of bush native to the Forest Moon of Endor, known for producing brub berries. During one winter season on Endor, the Ewok named Weechee came back from a hunting expedition carrying a large quantity of brub berries. Upon seeing the berries, Wicket Warrick, his brother, anticipated that Weechee would brag about the challenges faced in acquiring them. Subsequently, Weechee commented on the elevated position of the fruits on the bush and implied that his brother, due to his shorter legs, would have found it particularly difficult.
Brub berries served as the key ingredient for a specific sauce. The recipe for this sauce appeared in The Life Day Cookbook, the second cookbook by Artiodac chef Strono Tuggs. This cookbook was released in 34 ABY, following his first one. Tuggs acknowledged the berries' source as the brub-brub bush within the pages of his book.
The initial reference to the brub-brub bush occurred in "The Kroolok," a concise narrative co-authored by George Mann and Cavan Scott. This story was featured in the Life Day Treasury short story compilation released in 2021.