Drake & Chris Brown Feud -- Thought It Was Over? THINK AGAIN!

Drake is holding nothing back about his feelings toward Chris Brown ... ripping CB over his music and the way he treats Rihanna -- and doing it in a very public forum.

Drake sat down with Elliott Wilson on his "Keep It Thoro" Internet radio show last night, and absolutely tore Chris a new one ... saying, "His insecurities are the fact that I make better music than him, that I'm more popping than him and that at one point in life the woman that he loves fell into my lap."

He added, "I did what a real n***a would do and treated her with respect."

Damn.

Drake did leave open a slight chance for reconciliation, saying, "We have an issue and it's either gonna drag out or maybe in ten years we'll laugh about it over drinks. Just let us solve that s**t."