Instead of relying on colonial and Western developmental logic to understand and research gender, this paper proposes interfering as a strategy toward generating gender knowledges that are more inclusive to other-than-Western concepts and contexts. This paper shows how post-developmental perspectives interfere with psychological and biological scientific logics that feed into common sense explanations of gender. Interference is discussed as one of a number of post-developmental practices that can illuminate the social construction of gendered childhoods and the position of the child as agentic. The paper ends by highlighting other-than-Western gender research that draws from post-Confucianism to interfere with the universal gendered girl and boy child. It is a move toward gathering and generating new gender knowledges.