To beat vigorously or violently.

To struggle or move wildly.

बेवजह संघर्ष करना या बेतरतीब हिलना।

English Usage: The fish was thrashing in the net, trying to escape.

Hindi Usage: मछली जाल में झल्ला रही थी, भागने की कोशिश कर रही थी।

A severe beating or punishing.

एक गंभीर पिटाई या दंड।

English Usage: The thrashing he received from his coach made him a better player.

Hindi Usage: कोच से मिली पिटाई ने उसे एक बेहतर खिलाड़ी बना दिया।