from way back
From a relatively long time ago. Wow, that vintage pendant must come from way back! Oh sure, George and I know each other from way back.
from way back
from far in the past; from a much earlier time. Grandfather comes from way back. This antique clock is from way back.
from way back
Since long ago; for a long time. For example, This painting has been in the family from way back, or We know the Smiths from way back. [Colloquial; late 1800s]