Lesbian Butch/Femme Society march in New York City's Gay Pride Parade (2007).
Butch and femme (/fɛm/; French:[fam];[1][2] from Frenchfemme 'woman')[3] are masculine (butch) or feminine (femme) identities in the lesbian subculture[4] that have associated traits, behaviors, styles, self-perception, and so on.[5][6] This concept has been called a "way to organize sexual relationships and gender and sexual identity".[7]Butch–femme culture is not the sole form of a lesbian dyadic system, as there are many women in butch–butch and femme–femme relationships.[8]
Both the expression of individual lesbians of butch and femme identities and the relationship of the lesbian community in general to the notion of butch and femme as an organizing principle for sexual relating varied over the course of the 20th century.[9] Some lesbian feminists have argued that butch–femme is a replication of heterosexual relations, while other commentators argue that, while it resonates with heterosexual patterns of relating, butch–femme simultaneously challenges it.[10] Research in the 1990s in the United States showed that "95% of lesbians are familiar with butch/femme codes and can rate themselves or others in terms of those codes, and yet the same percentage feels that butch/femme was 'unimportant in their lives'".[11]