For the sauce: Stir together the kewpie mayo, teriyaki sauce, honey and hot sauce in a small bowl. Set aside.
For the burgers: Season ground beef with salt and pepper then form it into four equal 4 oz patties. If you don't have a scale you can use a half mesuring cup to get 4 oz patties.
Turn the griddle on low and preheat it to 375-400 degrees.
Cover the patties with the Japanese BBQ sauce and place it into the fridge for 5 to 30 min while the griddle heats up. If you leave it for more than 30 minutes the beef will fall apart.
When the griddle is at temp placedown your patties and cook them for 4-5 min per side.
After you flip the patties place your pineapples in the residual teryaki sauce on the griddle. Top each patty with a slice of provolone cheese and start toasting your buns until brown.
Spoon a little bit of the sauce on both sides of the buns and allow it to soak into the bread. Place the shredded lettuce and patties on the bottom buns and top each with 2 pineapple slices. Put your top buns on and smush it all together. Serve with extra sauce for dipping.