The battle continues ...

Shaquille O'Neal is throwing shade at Dwight Howard again ... proving that a Lakers jersey won't protect DH from the wrath of the Diesel.

Shaq and Dwight have been going at it for years -- some people trace the feud back to a 2007 dance battle ... when a young Dwight tried to eat Shaq's metaphorical heart (don't worry, Shaq battled back and took his head).

Over the years, the shots continued ... with Dwight even trying to use Shaq's famous "Superman" moniker at one point. That didn't go over well with O'Neal.