get/ have somebody over a barrel
US /ɡet/hæv ˌsʌmbədi ˌoʊvər ə ˈbærəl/
UK /ɡet/hæv ˌsʌmbədi ˌoʊvər ə ˈbærəl/

1.
tener a alguien contra la espada y la pared, obligar a alguien
to put someone in a very difficult position from which they cannot escape without suffering, especially so that you can make them do what you want
:
•
The company had us over a barrel because we needed the contract so badly.
La empresa nos tenía contra la espada y la pared porque necesitábamos mucho el contrato.
•
He tried to get me over a barrel by threatening to expose my secret.
Intentó ponerme contra la pared amenazando con revelar mi secreto.