Brooks Koepka and Mr. Miyagi have something in common -- they both believe in a little "Wax on, wax off."
The PGA superstar did a little Q&A on IG with his girlfriend Jena Sims on Monday night ... where the golfer was asked about a rumor that he waxes his ass.
Not only did Brooks answer the question, he totally owned up to some cheeky body hair removal ... and even provided an explanation.
"it is very true," the 30-year-old said ... "I lost a bet to Jena!"
That's when Jena chimed in -- adding, "And we may or may not had some friends in attendance!