Telltale evidence in digital form such as e-mail and text messages. The term comes from the proverbial "lipstick on the collar" confirmation of a romantic involvement. See e-trail.
"digital lipstick." YourDictionary, n.d. Web. 14 August 2018. <http://www.yourdictionary.com/digital-lipstick>.
digital lipstick. (n.d.). Retrieved August 14th, 2018, from http://www.yourdictionary.com/digital-lipstick