A black sheep( কুলাঙ্গার ) Tom is a black sheep in their family
Wild goose chase( পন্ডশ্রম ) Do not waste time in wild goose chase.
Hue and cry( শোরগোল ) The villagers raised a hue and cry to see the thief.
A blessing in disguise( বিপরীতে হিত ; প্রথমে খারাপ হিসেবে মনে হলেও পরবর্তীতে ভালো হয় ) Sam's motorcycle accident was a blessing in disguise because he got enough insurance money.
tickled pink( খুব খুশি করানো ) She was tickled pink by the good news.
Far and wide( সর্বত্র ) His fame as a scholar spread far and wide