"Laddish" attitudes and behaviours are central to current discourses on boys' "underachievement," as they are seen by many people to impede the progress of some boys in school. Whilst the vast majority of concern about "laddishness" has, to date, focused upon boys, according to media reports there are now good reasons to worry about girls. Anecdotes from teachers and reports in the media suggest that some schoolgirls are now acting "laddishly," that they are "ladettes." This paper explores "ladette" cultures in secondary schools, drawing upon interview data from 100 pupils and 30 teachers. It tackles and discusses the following questions: (a) What does the term "ladette" mean to pupils and teachers? (b) Do school-aged "ladettes" "exist"--and if so, what are they like inside and outside of school? (c) In what ways are "ladettes" similar to, and different from, "lads?" (d) Are teachers concerned about "ladettes?" (e) Are "ladette" behaviours on the increase? (Contains 1 table and 7 notes.)