This paper presents the findings on the use of Anonymous Social Media (ASM) in Bangladesh based on an anonymous online survey of 291 participants and semi-structured interviews with 27 participants. Our study shows a wide prevalence of sexual harassment on anonymous social networks in Bangladesh, the relationship between a closely-knitted communal culture and anonymous harassment, and the lack of infrastructural support for the victims. These findings advocate for a safe and supportive online environment for its users, especially for women who are the primary victims of profanity or defamation in Bangladesh