right in the middle of; in the midst of; at the height of
Used to emphasize that an action or event is at its peak or most intense moment. Often followed by a noun or verb phrase indicating the ongoing activity.
彼は仕事の真っ最中だ。
He is right in the middle of work.
試合の真っ最中に雨が降り出した。
It started raining right in the middle of the game.
An earthquake struck right in the middle of the meeting.
I'm right in the middle of preparing to move.