As kid in the 60's me and my friends also yelled when we picked each other up for school...and we yelled HOE...HANDE..LOOOO not sure if we copied Tarzan back then....
I had a classmate that sounded excactly like Weissmuller we thought...He were yelling his ass off for a couple a years around 1962-63.... we were 8 and 9 then...