By The Way Edit Meaning

1.

"oh, and On that note," or "While we're on the subject" or "since you mentioned it" or "Concerning that,"

I can not wait to see you at Thanksgiving, Karolina. By the way, will you be eating the delicious pie I make?

See b.t.w

2.

incidentaLLy or unintentionaL

By the way, your mother called. She wants you home earLy.