By fits and starts ( অনিয়মিত ; মাঝে মাঝে ) He works by fits and starts.
Bag and baggage ( তল্পিতল্পাসহ ) He left the place bag and baggage.
At a low ebb ( নিম্নমুখী ) His fame is at a low ebb now.
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.
Red letter day ( স্মরণীয় দিন ) The 21 February is a red letter day in the history of Bangladesh.
At arm’s length ( দূরে ) Try to keep the bad boy at arm’s length.