Ronda Rousey famously learned to fight under the guidance of her mother, Dr. Ann Maria Rousey DeMars, the first American to win a World Judo Championship. Dr. De Mars was given to taking maxims like Practice doesn’t make perfect, perfect practice makes perfect and making them more pointed.

You know what happens when you practice half-@$$, Ronda?” Dr. DeMars asked her daughter. “You f@#%ing lose!

Dr. DeMars appeared on Wednesday’s episode of The Ultimate Fighter 18 to offer Team Rousey some advice.

“A lot of people will understand me a little more after this visit from my mom,” said Ronda Rousey.