On Instagram, “BSN” commonly functions as an abbreviation for “bullshit, nigga.” It is used as a dismissive expression or a way to call someone out for perceived dishonesty or exaggeration. For example, a user might comment “BSN” on a post they believe contains false or misleading information.
The use of this abbreviation mirrors the function of its expanded form, serving as a direct and often confrontational way to express disbelief or disagreement. Its presence highlights the informal and sometimes combative nature of online communication and the ease with which users can express their opinions, regardless of their potential offensiveness. Its historical context is rooted in online slang and the adoption of abbreviated phrases within social media platforms to quickly convey meaning.