The energy of being shocked fills your body and leaves you dumbfounded. You're so taken aback by this surge of shock that all you can do is stand still and let the energy go through you.

This word uses the あき reading for 呆 that you learned with 呆れる (but shortened to あっ) and the け reading for 気 that you learned with words like 飾り気, 吐き気, and 湿気. If this is a little confusing, here's a mnemonic that might help:

Imagine how dumbfounded you'd be if you were talking to someone and they suddenly pulled out a kettle (け). Picture it: you're mid-conversation on the street, and then they just whip out a kettle and start serving you tea. You'd probably be so taken aback and astonished that you'd say “Ah! Kettle!" Go ahead and shout "Ah! Kettle!" real loud. Yeah, now your neighbors are dumbfounded.