red cent
US /rɛd sɛnt/
UK /rɛd sɛnt/

1.
びた一文, 少しも
a very small amount of money; nothing at all (used in negative contexts)
:
•
I wouldn't give him a red cent for his advice.
彼のアドバイスにはびた一文も払わない。
•
After all that work, he didn't earn a red cent.
あれだけの仕事をして、彼はびた一文も稼がなかった。