Brrumbo is a Bumbo made in the side of an underwater ravine in Iskall85's base. Iskall85 created Brrumbo during his 200k live stream (between his 7th and 8th episode) where he used packed ice and bone blocks to portray that this Bumbo has been frozen solid from thelast season. Appearing in many other hermits episodes, it seems to be one of the more popular (especially after they hear Iskall85 pronounces his name).