Definition of all in in English:

all in

phrase

informal
  • Exhausted.

    ‘he was all in by half-time’
    See also all-in
    tired out, worn out, weary, dog-tired, bone-tired, bone-weary, ready to drop, on one's last legs, asleep on one's feet, drained, fatigued, enervated, debilitated, spent
    View synonyms

Pronunciation

all in