He jabbed the bag with his left hand — thwack — and frowned.
New York Times(Dec 28, 2016)
Rose encouraged moments later as a few fans thwacked the arms and legs off the Trump effigy.
Time(Dec 02, 2016)
In response, one of the creatures sends its slimy starfish hurtling against the glass with a thwack.
Washington Post(Nov 18, 2016)