Use 'flummox' when someone is surprised and confused, not just lacking understanding.

Unexpected Surprise

'Flummox' implies a sudden state of confusion, often temporary.

Sudden Confusion

'Flummox' is less common in everyday speech; it's more colorful and vivid.

Not for Everyday

 was an amazing sensation because it was just so new and different things like the Scorpion may said radically change people's perceptions they took them back to a time for which they had no texts it was really there were flummox they

The Real Scorpion King PIPE...

 I essentially drag sledges for a living, so it doesn't take an awful lot to flummox me intellectually, but I'm going to read this question