haha you mean fauxbae or catfishing. these are common terms but mainly only used by younger people, especially active on tinder/etc online date apps. I think the three word thing was the pronouncing guide "Fauxbae’ing (/foh-bey-ing/): Pretending to have a significant other over social media when you’re actually single. faux = fake in french and english bae = well you know that ="babe"

I don't think there is one - this is why you can't remember it.