This is the nickname of Gideon, an Israelite judge.
Judges 6:32Therefore on that day Gideon was called Jerubbaal, saying, “Let Baal contend against him, because he has torn down his altar.”
In July 2021, a pottery shard inscribed with the name "Jerubbaal" was discovered in the land of Israel. ([http://news.kmib.co.kr/article/view.asp?arcid=0924200769 Source])
For more details, see Gideon.