大おおげさにする

expression, suru verb (irregular)

exaggerate; make a big deal of

Used when someone overstates or dramatizes something, often in speech or behavior.

• 彼かれはいつも話はなしを大おおげさにする。

  He always exaggerates his stories.

• そんなに大おおげさにしなくてもいいよ。

  You don't have to make such a big deal out of it.