The purpose of the present study was to analyse adolescents' perception of bullying and particularly of the ways intelligible masculinities and femininities are performed through violence in the framework of Queer Theory. We conducted a qualitative study using focus groups. The sample was composed of 93 Spanish adolescents (48 girls and 45 boys, mean age 13.7 years) who attended 4 compulsory secondary education schools in Spain and participated voluntarily in the study. Students' statements revealed that bullying is a strongly gendered phenomenon and an additional way of 'doing gender', that is, of performing hegemonic femininities and masculinities at school, imitating and reproducing gender norms and punishing those who transgress them.