mascara n.
(UK juv.) a sexual partner, esp. male.
 | The Conversation 10 Feb. 🌐 Posts tagged with #mascaratrend generally feature young women using the term “mascara” and associated metaphors to refer to romantic or sexual partners. For example: I found the best mascara ever but it changed and made my lashes completely fall apart and now I don’t know if I’ll ever trust any other mascara. |