額ひたいを集あつめる

expression, ichidan verb

put heads together; gather for discussion; huddle

Idiomatic expression meaning to come together and discuss something, often in a small group. The image is of people leaning in so their foreheads nearly touch.

• 問もん題だいを解かい決けつするために、みんなで額ひたいを集あつめて話はなし合あった。

  To solve the problem, we all put our heads together and discussed it.

• 新あたらしい企き画かくについて、スタッフが額ひたいを集あつめている。

  The staff are huddling together to discuss the new project.