This paper reports a case study of teaching Cantonese to Hong Kong ethnic minority pre-schoolers using process drama. Based on Deleuzo-Guattarian concepts of minor literature and language, becoming and de-/re-territorialisation, this paper aims to reconceptualise a playful adaptation of process drama developed by Joe Winston (2012) as a language-minoritising approach to the teaching and learning of a major language that is very foreign to children. The findings suggest that, to accomplish ethnic minority children's becoming Cantonese speakers, the theatre games and language play should involve minoritorisation and de-/re-territorialisation of the normative practices of process drama, the target language as well as learner identity.