She's also not in the WWE and is not susceptible to noggin locks from guys in flag capes, as we discovered thanks to the latest SNL promos.
The MMA champ is hosting this weekend with musical guest Selena Gomez, and she's joined in the video above by Beck Bennett, who seems to be a bit confused and overwhelmed by Rousey's presence.
He tries to hit on her, and she threatens to rip his arm off. He puts on a wrestling contest and tries to wrestle her, and she knocks him to the floor, as if that scenario were going to end in any other way.
While we're still a bit unsure of the range of Rousey's comedic talents, we're kind of expecting a lot from the woman who's already set to star opposite Tina Fey in a comedy called Do Nothing Bitches, written by Sisters scribe Paula Pell, and inspired by Rousey's own rant about laziness.
If our dreams were to come true this weekend, Fey might even show up as well to help Rousey out and reprise her role as Sarah Palin after Palin's endorsement of Donald Trump this week, but we're not holding our breath.
We are, however, keeping our fingers crossed while we look forward to whatever Saturday brings.
Saturday Night Live airs Saturday at 11:30 p.m. on NBC.
(E! and NBC are both in the NBC Universal family.)