Tyson Fury just went the hell off on both Jake AND Logan Paul ... absolutely unleashing on the brothers and calling them "s***house p*****s."

As we previously reported, Jake has been talking a ton of crap after Tyson's brother, Tommy, backed out just 2 weeks before their fight was set to go down in Tampa ... calling the champ and his now-former opponent a "f***ing bitch."

Logan also chimed in ... saying it's a good thing Tommy is handsome, 'cause he's a p***y."

Now, Tyson is firing back at the YouTube superstars ... and boy, he didn't hold back.

"Jake Paul can go suck a d*** for all I care ... p***y," Tyson said. "Him and his brother are s***house p***ies and could never live in my world because they're f***ing bitches."

"And, if you don't like the language, get f***ed."

Yikes.

Tyson says Tommy missing out on the fight is no big deal -- saying there will be plenty more paydays to come.

As for whether he wants to see Tommy and Jake reschedule their fight, Tyson says he has zero interest in what the two boxers do.