Farrah Abraham to Mom -- You Can't Kick Me Out ... I'M LEAVING!!!

Farrah Abraham's sex tape has created a fiery rift between her and her mother -- whom she lives with -- and now, Farrah's packing up and moving out.

You'll recall, Farrah's mom pretended to be blissfully ignorant of her 21-year-old daughter's porno -- telling us Farrah would never star in such a video ... let alone commission it ... protesting, "We have religious beliefs."

Fact is Farrah did it ... and when it came out that she was the one who masterminded the sex tape (info courtesy of James Deen) mama flipped out.

Sources close to Farrah tell us, the two have been arguing tooth and nail ever since ... so today, Farrah packed up a U-Haul and hit the road.

Sources say Farrah's mother gave her the boot ... but Farrah tells us, "After meeting with my counselor today, I've packed up everything and I'm not talking to my mom anymore."

She adds, "My mother will never be a good mother to me and it is too hurtful to deal with let alone have my daughter Sophia around it."