It's not official quite yet ... but Charlotte Flair just got in the latest shots as they hype up a potential WWE mega-match.

"She knows where to find me," Charlotte told TMZ Sports at LAX ... before hinting that she'd wreck the ex-UFC champ in the ring.

Remember -- Ronda, Charlotte and their gal pals were in a WWE promo a few weeks ago ... sparking rumors of a Flair vs. Rousey super-fight.

We asked Charlotte if the match was already set ... and it kinda seemed like she was holdin' out on us.

Either way, Flair says she's got a ton of respect for Ronda ... cause her ass-kickin' blazed a trail for female superstars in the UFC and WWE.

Fun fact: The Nature Boy's a HUGE Rousey fan too -- WOOOO!!