Hit/knock somebody for six Definition 1 of 3Pro Tip 1/3Emotional Weight The phrase often implies deep emotional impact and should be used with sensitivity. When she lost her job, it knocked her for six. Pro Tip 2/3Personal Upset Use this expression to describe personal turmoil, not minor inconveniences or good surprises. The divorce proceedings really hit him for six. Pro Tip 3/3Strong Reactions Best used for events that cause a significant reaction that someone struggles to recover from quickly. Her betrayal hit her best friend for six.