"Hawk Tuah" girl's 15 minutes of fame ain't over yet -- and clearly, neither is her time spittin' -- 'cause the internet's newest star was seen over the weekend partying with Shaquille O'Neal in Nashville, where she, fittingly, coughed up some saliva on one of his microphones!!
The NBA legend -- who moonlights as a DJ -- was in the Music City on Sunday for a performance at Jon Bon Jovi's new JBJ's Nashville joint ... when, at some point, he crossed paths with Hailey Welch, aka Hawk Tuah.