catch someone with their pants down
US /kætʃ ˈsʌm.wʌn wɪð ðer pænts daʊn/
UK /kætʃ ˈsʌm.wʌn wɪð ðer pænts daʊn/

1.
menangkap dalam keadaan tidak bersedia, menemukan tidak bersedia
to discover someone doing something wrong or embarrassing, or to find them unprepared for something
:
•
The boss caught him with his pants down when he was playing games on his computer during work hours.
Bos menangkapnya dalam keadaan tidak bersedia ketika dia bermain permainan di komputernya semasa waktu kerja.
•
The sudden inspection caught many employees with their pants down, as they hadn't prepared their reports.
Pemeriksaan mengejut menangkap ramai pekerja dalam keadaan tidak bersedia, kerana mereka belum menyediakan laporan mereka.