Catch red handed ( হাতে নাতে ধরা ) The thief was caught red handed.
Slip of the pen ( লেখায় অসতর্কতাবশতঃ সামান্য ভুল ) This mistake is due to a slip of the pen.
Take to one's heels ( ছুটিয়া পালানো ) The thieves took to their heels to see the police.
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.
slap on the wrist ( মৃদু শাস্তি ) Although he broke the rules, he was only given a slap on the wrist
In full swing ( পুরাদমে ) The school is now in full swing.