Used in casual, friendly contexts, not in formal or professional settings. I love knocking around with my cousins during the holidays.
Pro Tip 2/3
Close Associations
Suggests a familiar and comfortable relationship with the people you spend time with. She's been knocking around with her childhood friends since she moved back to town.
Pro Tip 3/3
Frequency Implied
Often implies spending time together frequently or regularly. Lately, he knocks around with his bandmates almost every day.