Wiktionary
alt. (context uncountable English) The act of making a person (especially a woman) feel guilty or inferior for sexual activity, desires, expression, or circumstances that deviate from traditional or orthodox gender expectations or religious or cultural standards. n. (context uncountable English) The act of making a person (especially a woman) feel guilty or inferior for sexual activity, desires, expression, or circumstances that deviate from traditional or orthodox gender expectations or religious or cultural standards.
Wikipedia
In human sexuality, slut-shaming is a form of social stigma applied to people, especially women and girls, who are perceived to violate traditional expectations for sexual behaviors. Some examples of circumstances where women are "slut-shamed" include violating accepted dress codes by dressing in perceived sexually provocative ways, requesting access to birth control, having premarital, casual, or promiscuous sex, engaging in prostitution, or when being victim blamed for being raped or otherwise sexually assaulted.