be caught with (one's) pants down

To be taken by surprise; to be caught in a vulnerable (often embarrassing) position or situation. When the boss started firing questions at me, I was caught with my pants down and looked like a fool. I just hadn't considered all of those potential outcomes yet and didn't know what to say. We seriously underestimated our opponents on Saturday and were caught with our pants down.

Common Names:

Name	Pronounced	Usage
Wynn	[win]
Alisher	-	Uzbek, Kazakh, Tajik
Hammer	['hæmə]
Rayhana	-	Arabic
Ambrosius	-	Ancient Greek (Latinized)
Cyrille	see-REEL	French