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This is an acronym for Sleepy Boys Inc. First created as a family/group name for youtuber/streamers Technoblade, Wilbur Soot, TommyInnit, and Ph1lzA, who are canonically a family in the Dream SMP, the name has carried over into other games when the same people play together. Note: Streamers Ranboo and Tubbo are not considered part of SBI, but they do have strong friendships with them.
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