To cover or pave with slabs, especially concrete slabs.
This meaning of slabbed makes people think of construction and building things.
Examples:
They slabbed the patio with concrete.
The workers slabbed the sidewalk.
The driveway was slabbed with smooth concrete.
She slabbed the floor with big stones.
The whole yard was slabbed with colorful tiles.
We slabbed the path to the house with bricks.