Very hungry; starving—used colloquially to describe a rumbling or empty stomach.
朝ごはん抜きでペコペコだ。早く食べよう。
I'm starving since I skipped breakfast. Let's eat soon.
子供たちは外で遊んで帰ってきたらみんなペコペコだった。
The kids came back from playing outside and were all famished.
昼までに仕事が終わらなかったから、ランチの頃にはペコペコだった。
Because work didn't finish until noon, I was starving by lunchtime.
Bowing repeatedly; acting obsequiously—used to describe servile, fawning behavior.
クレーム対応で店員がペコペコ頭を下げて謝っていた。
The clerk kept bowing and apologizing while handling the complaint.
上司の前で彼はいつもペコペコしているので信用できない。
He always acts obsequiously in front of the boss, so I don't trust him.
To be dented or buckled; to give in when pressure is applied—describing a depressed or dented state.
空き缶が地面で踏まれてペコペコになっていた。
An empty can had been stepped on and was all dented.
古いドアの表面が雨でペコペコになっている。
The surface of the old door has warped and become dented from the rain.