To speak nonsense or about something one knows little about.
অযথা বা না জেনে কথা বলা।
"He was talking through his hat about quantum physics."
"সে কোয়ান্টাম ফিজিক্স নিয়ে না জেনে বাজে কথা বলছিল।"
to stay calm under stress or provocation
to be in charge of or accountable for something
a family secret that one wants to keep hidden
to go faster; to hurry up
To prepare to work hard.
to achieve a small success but fail in the larger goal