2. Initialism. Bank of Ireland ¹
3. Initialism. Basal Osseointegrated Implant ¹
4. Proper noun. a style of Central Amazonian folk music ¹
5. Noun. (countable slang Internet ) An alternate spelling of boy ¹
6. Noun. (BDSM especially in roleplay) A male bottom (i.e. submissive partner), defined not by junior age, but by his obedient role, especially when that implies him being subject to spanking and/or other punishment by the dominant "top". ¹
¹ Source: wiktionary.com
Definition of Boi
1. a lesbian who adopts a boyish appearance or manners [n -S]