Assuming you mean turning the bat perpendicular to the pitch and stopping it so that the ball just bounces off the bat, then no. The bat has to impart enough momentum to the ball to carry it over the wall. There is some elasticity to both the bat and the ball such that a fraction of the pitch speed is rebounded, but it is a low fraction. The pitcher would have to be pitching up near the speed of sound for the rebound to carry the ball very far.

That said, I can imagine a bunt where enough errors are made in the infield that the batter makes it all the way around without being thrown or tagged out.

Someone might be along to do the actual math, but the base answer is that there really isn’t a way for a true, over the wall, home run to occur from a bunt.