free-for-all
US /ˈfriː.fɔːr.ɔːl/
UK /ˈfriː.fɔːr.ɔːl/

1.
todos contra todos, caos
a disorganized or unrestricted situation or event in which everyone is able to participate
:
•
The debate quickly turned into a free-for-all with everyone shouting.
El debate rápidamente se convirtió en un todos contra todos con todos gritando.
•
The sale was a complete free-for-all, with people grabbing items off the shelves.
La venta fue un completo todos contra todos, con la gente agarrando artículos de los estantes.