pounce on somebody/something phrasal verb (
see also pounce)
1. to criticize someone’s mistakes or ideas very quickly and eagerly:
Teachers are quick to pounce on students’ grammatical errors.2. to eagerly take an opportunity as soon as it becomes available:
When they offered O'Leary the chance to become manager, he pounced on it. [TahlilGaran] Dictionary of Contemporary English ▲