The Descendants star, who has been dating Stacy Keibler since August, revealed that the ex-WWE star can be intimidating.
"She's very tall," Clooney told People "She can kick my ass."
Clooney went on to say that Keibler could take him in a wrestling match.
"She can take me two out of three falls," he added.
Keibler has previously said that she likes "everything" about Clooney.
The actor recently revealed that he lost his virginity at the age of 16, adding that he had his first orgasm when he was 6 years old.
Watch the trailer for The Descendants below: