At someone's beck and call
At someone's beck and call (영어) — To be available for someone at any time or place without regard for self. To be at their every wish or whim. A beck is the shortened form of beckon. A beckon as a signal, a nod, a gesture, and a call, their verbal command.
"At someone's beck and call" in lyrics
On pins and needles we are waiting for the fall
We count the days scratching lines on the wall
Wait in the wings at someone’s beck and call
No longer recognize the place that I call home
No longer recognize this face as my own