* The baseball player thwacked the ball out of the park, sending the crowd into a frenzy.
* The blacksmith thwacked the metal with his hammer, shaping it into a horseshoe.
* The wind thwacked the branches of the tree against the windowpane, making a loud, rhythmic noise.
* He thwacked the fly with the rolled-up newspaper, sending it sprawling on the floor.
* The chef thwacked the dough with a rolling pin, making sure it was perfectly flat.