Two aspects of mothering—using drugs during pregnancy and giving up the rearing of one's children—are the focus of this analysis of 58 addicted Chicana mothers who spent their adolescent years in barrio gangs. From a traditional stance, such women were doubly deviant, since they violated gender-role prescriptions by joining a barrio gang and by becoming involved in heroin and street life. Half of these women added to this deviance by using heroin during pregnancy, and 40 percent relinquished at least one (...) of their children. This article explores what distinguishes these classically “bad mothers” from addicts who maintain some degree of conventionality in their mothering. We found that Mexican gender-role traditionalism is not the only influence on these women. Many came from cholo or underclass families with a tradition of street involvement. In addition, their involvement in gang and heroin worlds may influence their behavior as mothers. We found that women who used drugs during pregnancy were more likely than abstainers to be cholas and to reject traditional gender-role values. However, those who gave up their children were more likely than those who kept their children to be from traditional families. We discuss the implications of these findings for research on deviance and the underclass among Hispanic women. (shrink)