Felice Herrig literally beat the crap outta her opponent last time she fought inside the Octagon -- and says she's totally cool with getting down and dirty again this Saturday at UFC 218.
"Actually I wouldn't mind if (Cortney Casey) sh*t on me because if the ref sees it, it's an automatic TKO," Felice told TMZ Sports. "TKO via poop stoppage ... I'd love that."
Don't get it twisted -- Herrig doesn't wanna be known for her poop-inducing abilities ... but if they get her the W (which is technically the rule), why not let ish happen, right??