Boy Meets World's Danielle Fishel and Maitland Ward rehashed their decades-long feud.

 Danielle Fishel revisited her heated estrangement from her former "Boy Meets World" costar Maitland Ward -- and it's safe to say, it sparked one heck of a firestorm!

DF had Maitland on the latest "Pod Meets World" episode to chat about her switch to adult entertainment -- but things got heated when Danielle straight-up asked, "Do you hate us?" -- and that’s when the drama really kicked off.

You have to hear the back-and-forth between the two -- 'cause Maitland accused Danielle of actually hating on her.

Check out Maitland Ward sex tape here

Maitland brought some receipts ... addressing the Facebook message she sent to Danielle back in '13, which went unread for years. The tension built up so much, when the message was finally uncovered, there was cynical talk of only addressing it on the podcast to boost the stats TMZ