What is "whomp on"

Usage examples of "whomp on".

Boy Mackenzie told his son, giving him a congratulatory whomp on the shoulder.

He did a forced somersault and landed with a hard whomp on the dock.

So saying, he grabbed the neck of the sack tightly with both hands and, with a swiftness even Mudge would have been hard-pressed to match, brought it down in a sweeping arc to land with a loud whomp on top of the wolverine's skull.

So saying, he grabbed the neck of the sack tightly with both hands and, with a swiftness even Mudge would have been hard-pressed to match, brought it down in a sweeping arc to land with a loud whomp on top of the wolverines skull.