Altvater 

German: literally ‘old father’, used as a distinguishing epithet for a grandfather or father-in-law; probably a surname borne by the servant of a person in the service of the grandfather or father-in-law of a local personage.

He was proud of his surname, Altvater

Altvater by Daisy-dag February 3, 2010

Altvater 

alt*vat*er v. to Altvater someone is to invite them to an event, and, after introducing them to a large group of people, promptly disappearing for the rest of the night.

"How was that party last night?"
"It was fine, but my friend totally altvatered me, so I had to talk to randos and left early"

Altvater by garbitch January 15, 2021

Altvater 

A very Nazi-sounding German last name

Ich bin Altvater!

Altvater by CrapBagFTL October 19, 2008