"I'm not sure where I learned it, it's just my girsa d'yankuta."

"My girsa d’yankuta: 'Trick or Treat!' My child’s girsa d’yankuta: 'Baruch Atoh, Omain!'" (source)

"As an apikoros (in Yiddish, a 'heretic'), Buber knew Judaism from within, having acquired it in his youth - as the Talmudic Aramaic has it, girsa d'yankuta, 'imbibed it with his mother's milk'" (Martin Buber: A Life of Faith and Dissent, by Paul Mendes-Flohr, 2019, p. 147)