What is "bumpings"

Usage examples of "bumpings".

He was pissed, if you want my opinion, about the job he was sent on, he was pissed at BM, pissed at management, he was upset as hell about the accident and he had no doubt whatsoever the company’d back him against us when we did find the body—just like the bumpings, just like that, bad blood, a way of shedding some of the fallout on us—because we couldn’t prove a damned thing.

We heard more subdued bumpings as he moved round the hull to the air-lock, and then there was a long pause while he examined the controls.

The car turned right under an elevated, the tires made hard, bumping sounds on rough cobbled pavement and the bumpings slowed as they caught a red light.

But how could he believe it with all the bumpings and the scrapings, the howlings and snarlings and cries in the night?