Combination of the drug Zanax/Xanax and Grandpa. It's an old guy who looks good. Simalar to "a silver fox", but more street cool.
Coined by late night host Stephen Colbert, when talking about "Faceapp", a dodgy Russian phone app which creates an aged version from any photo.
20 Jul 2019, Stephen Colbert monologue
The biggest trend buzz this week is the social media craze "FaceApp." You upload a photo of yourself and it shows you what you'd look like way older. Everyone is doing it, including me. Got to say "Not bad. Hello Zandpa."
Now this is the only fun thing to happen this week, so of course there's a nefarious dark side...
Summary: Russians own all your personal information on your phone legally forever.