1. to shed crocodile tears : घड़ीयाली आँसू बहाना, to show false grief
Political leaders shed crocodile tears for the poor.
2. to show the white feather : डर दिखलाना, to act like a coward
Brave people never show the white feather even in the most adverse situations.
3. to sit on the fence : तटस्थ रहना, to adopt a neutral attitude
During a discussion on Kashmir autonomy usue most members of the Parliament chose to sit on the fence.
4. to smell a rat : दाल में कुछ काला होना, to detect something wrong
I smelt a rat when he became very kind to me all of a sudden.
5. to speak volumes for : प्रबल प्रमाण होना, to have plenty of evidence
His high score in the exam speaks volumes for his intelligence and ability.