Bloof

The sound of a mediocre impact. Unlike a large impact sound, BOOM! KAPOW! etc., that might have a flash of light or mushroom cloud with it. Unlike a small impact sound like Thud, or Poof, that might raise a little dust, Bloof is in the middle.

The meteor ripped through the sky, men wailed in anguish at their impending doom, women sardonically sipped their coffees, wines, and vodkas, while encouraging children to enjoy the light show. Smaller the meteor became until it impacted in Skunkypoo Swamp with a less than resounding... bloof.