The ball bumped slowly down the stairs.

When I came to, we were bumping slowly along an unpaved road out in the middle of nowhere.

A car came bumping slowly down the rough track to the yard!

I bumped slowly down a rutted unmade lane which ended in an untidy space outside a creeper-grown house.

He remained watching until the bus bumped slowly up the slope of the valley and finally tipped over the headland out of sight.

He went, slowly and sometimes bumping into things, back to his control seat.

He drifted randomly in zero-G, slowly bumping from wall to wall.

If you slowly bump two neutrons together with less than 1MeV energy, I think they will do a kind of fusion reaction.

The Rover bumped slowly towards the road.

Bumping slowly forward, we arrived at the gates.