1. thud - Noun
2. thud - Verb
A dull sound without resonance, like that produced by striking with, or striking against, some comparatively soft substance; also, the stroke or blow producing such sound; as, the thrud of a cannon ball striking the earth.
Source: Webster's dictionaryI fell off my pink cloud with a thud. Elizabeth Taylor
Children who have been in work for a long time suddenly get a thud down to earth once the cuteness fades, hips widen, voices drop and jawlines strengthen. Jessie Cave
Starkey put his fingers under the man's chin and pushed his head back. As he did so, the man's eyeballs fell back into his head with a meaty little thud. The words on the sign had been written in red Magic Marker. NOW YOU KNOW IT WORKS, the sign said, ANY QUESTIONS? Stephen King
No rising star in the political firmament ever shone more brightly than Oswald Mosley, none promised more surely to soar to the heavens – and none fell to earth with so deadening a thud. Never were such rich talents so wretchedly squandered. Never did success turn to failure so inscrutably. Oswald Mosley
I became a connoisseur of that nasty thud a manuscript makes when it comes through the letter box. James Herriot
Whose leadership, whose judgment, whose values do you want in the White House when that crisis lands like a thud on the Oval Office desk? Rahm Emanuel