Ethnographic research, including individual interviews, focus groups, and participant observation, was conducted to examine how adolescents defined and negotiated the boundaries between normal/acceptable weight and overweight through direct and indirect teasing. In particular, this article focuses on gender differences in weight-based teasing and in the ways boys and girls responded to being teased within the high school context. Findings suggest that girls' body fat was more closely monitored and criticized than boys' by both male and female peers. Boys and girls of all sizes and all social groups, including teens who were overweight, were critical of people who displayed body fat. This article argues that by engaging in "othering" discourses of their peers' body fat, adolescents, regardless of their size, were able to discursively construct themselves as "normal" in comparison. In doing so, they negotiated a higher social rank for themselves and distanced themselves from the reality of everyday fatness.