knock over verb5 •To bump or strike something in such a way as to tip it.I knocked over a can of paint and spent the next hour cleaning up. •(slang) To rob; to stage a heist of.The bandits knocked over another bank, making three this week. •(slang) To beat up, murder or kill. •(slang) To finish eating or drinking (something). •(slang) To arrest (someone). formsknocked over · knocking over · knocks over