Thwomp

A thwomp like a sumo wrestler hitting the mat, and then the windows of the bridge were covered with a deluge of water. ❋ Peter Heller (2007)

Grab another Ice Flower from the right item box under the first thwomp, then take some coins from hidden item boxes under the second thwomp. ❋ Unknown (2010)

Dodge a big thwomp and keep right past some dry bones and gears, then get in the gaps of the big gear so that you don't get crushed against the ceiling. ❋ Unknown (2010)

Don't stop running until you've reached the gears beyond, then jump carefully to the next ledge in order to dodge another thwomp. ❋ Unknown (2010)

Lure the third one to proceed and bait the giant thwomp into crushing the blocks below him. ❋ Unknown (2010)

And then, with a giant thwomp, a team of scientists dropped not just one gene, but ❋ Unknown (2010)

Once they reach the top, they come back into the platforming action as stronger 'mario-thwomp' like enemies.

Left 4 Dead to the low thwomp of a Dubstep tune, this mode delivers impeccable audio. ❋ Unknown (2009)

How come I can’t stop hearing the dull thwomp of his Jeep crunching into the trunk of that tree? ❋ Sonya Sones (2008)