It is a curb or parking block trick where the front foot is planted first on the curb and the back foot "bonks" the back truck off the curb/parking block, bouncing the board up and off-landing back on riding away.
It's a curb or parking block trick where the front foot is placed first on the curb, and the back foot "bumps" the rear truck off the curb/parking block, causing the board to bounce up and land again for riding away.