Н113

ВАЛИТЬСЯ/СВАЛИТЬСЯ (ПАДАТЬ) С НОГ (от чего) collVPsubj: human or, rare, animalmore often impfv ) to be unable to stand on one's legs as a result of extreme fatigue, illness etc: X валился с ног = X was ready to drop (to collapse)X was dead on his feetX could hardly stand (stay) on his feetX was dropping (collapsing) (from exhaustion etc)X was dropping in his tracksX was dead tired (dog-tired)).