Hit for six
Badly shaken or knocked flat by something unexpected.
Person 1"How's Lou after the news?"
Person 2"Hit for six."
Where it's from
Cricket: hitting the ball over the boundary on the full scores six runs.

Something wrong or missing? Suggest a fix
While you're here
Extremely busy. Can be sarcastic about someone who isn't busy at all.
Extremely happy.
Get loud and rowdy, usually said of a party or a crowd. Also used for someone losing their temper.
Scare someone so badly they nearly wet themselves.
Extremely busy, with no hope of keeping up.
Completely exhausted or broken. Rooted means stuffed; gum trees have very deep roots.