Wiktionary
vb. (present participle of knock around English)
Usage examples of "knocking around".
An unpleasant feeling seemed to run through the people who had gathered in Boulder, a feeling just submerged below the surface-they were like a scared bunch of kids knocking around in the local haunted house after dark.
I'm two hundred, and what's more I shall still be be knocking around the old world when all you buggers are dead and buried.
After he had gone to his room she could hear him knocking around and talking softly to himself.
Not that her scars were shameful in the least, but Maia felt glad that most of the knocking around had spared her face.
I flew from the floor, hit the side, then struck the roof, knocking around in the van until I didn't know which end was up.