catch out
US /kætʃ aʊt/
UK /kætʃ aʊt/

1.
pegar em flagrante, desmascarar
to discover someone doing something wrong or something they intended to keep secret
:
•
The teacher caught him out cheating on the exam.
O professor o pegou trapaceando na prova.
•
She tried to lie, but her story caught her out.
Ela tentou mentir, mas sua história a desmascarou.
2.
pegar, colocar em apuros
to put someone in a difficult or embarrassing situation, especially by asking a trick question
:
•
The lawyer tried to catch the witness out with a series of tricky questions.
O advogado tentou pegar a testemunha com uma série de perguntas capciosas.
•
Be careful, he's trying to catch you out.
Cuidado, ele está tentando te pegar.