This paper builds on empirical research in Germany conducted in 2021 and explores the prevalence, impact and causes of catcalling linking the practice with constructions of masculinities, male bonding, and control. By applying an intersectional feminist lens and an analysis of hegemonic masculinities it investigates the root causes of catcalling behaviour, and its social perception and legitimisation. The research is based on online expert interviews and focus group discussions with young feminist activists, as well as a thematic analysis of online testimonies, particularly focusing on men’s speech during catcalling. The research reveals catcalling’s pervasive nature and significant social harm in Germany. It argues that catcalling constitutes a performance of hegemonic masculinities, perpetuating norms through male bonding and control over women and non-hegemonic masculinities. The paper also identifies the socialization of gender roles as a crucial element in perpetuating and excusing harassing behaviours, with bystander reactions reflecting dismissal and normalization.