bang out

US /bæŋ aʊt/
UK /bæŋ aʊt/
"bang out" picture
1.

急いで書き上げる, 急いで作り出す

to produce something quickly and often carelessly, especially a piece of writing or music

:
She managed to bang out an essay just before the deadline.
彼女は締め切り直前にエッセイを急いで書き上げた
The band could bang out a new song in an hour.
そのバンドは1時間で新曲を作り出すことができた。