Translation examples
If these were really that bad, they wouldn't let you bring them on the plane, flat out.
Ils ne vous laissera pas les mettre dans l'avion, à plat.
You´re flat out one day, on your feet the next.
Un jour, on est à plat, le lendemain, on est remis.
Period, flat out, just dead.
C'est fini, à plat, mort.