Chris was partying at Emerson Theatre in Hollywood early Thursday AM when he grabbed the mic from the DJ and went off on how to talk to your woman -- and the bizarre rant was all caught on tape.
Chris said, "You GOTTA say that one thing to her ... Don't make me have to tell you again, that's my p***y baby! ... so you better not give it away!"
Chris rambled on ... "So every person in this motherf**king building, if you got a bad bitch you better say that s**t to her, or she might f**k another n***a."
Another girl tip ... don't beat your woman.
TMZ ...we're helpful.