When one internet user gives another user the permission to "Catfish" them, or pretend to be someone they're not, over Facebook/other social media to facilitate an online romance.
Mo: I'm totally letting Lucy Catfish me because I'm pretty sure her fake Facebook is about to invite me to the Jimmy Buffett concert.
Karen: Does she know that you know? Is her Alias kinky?
Mo: Oh 100%, but don't worry I gave her Catfish Consent.