catch (someone) off guard

to surprise someone.

He's used to being interviewed and it seems that no question catches him off guard.

• with your [teacher's/lawyer's etc.] hat on
• woe betide
• woe betide someone
• wolf in sheep's clothing
• wolf whistle
• wolf-whistle
• wolf-whistle someone
• woman after own heart
• woman after your own heart
• woman in the street
• woman of dreams
• woman of means
• woman of the world
• woman of your dreams
• woman on the Clapham omnibus
• woman on the street
• won't bite
• won't hear a word against
• won't hear a word against someone
• won't hear a word against something
• won't hear a word said against
• won't hear a word said against someone
• won't hear a word said against something
• wooden spoon
• word for word