Black-ish's Tracee Ellis Ross says her butt has become her favorite body part as she's gotten older ... especially when it comes to her posterior. “I love my butt in a way I didn’t growing ...

"Oh my God, I love you," said the comedian ... "Alright. What is your favorite body part?" DeGeneres asked again. "Please, Ellen," she replied again, this time bumping the buzzer and prompting ...