Vag·i·nis·mus /ˌvajəˈnizməs/ Noun noun: vaginismus painful spasmodic contraction of the vagina in response to physical contact or pressure (especially in sexual intercourse). What is vaginismus? Above is the definition that comes up when you google vaginismus. You may have seen blogs or posts on social media about vaginismus or painful sex or may have experienced it …