koma

1. (medical) coma
   Posle nesreće je pao u komu. — He fell into a coma after the accident.
   Pacijent je još uvek u komi. — The patient is still in a coma.
2. colloq. (of a person) total exhaustion; a terrible state
   Posle žurke sam bio u totalnoj komi. — After the party I was completely wrecked.
3. slang a disaster; something awful
   Gužva u centru je danas koma. — The traffic downtown today is a nightmare.

Not to be confused with the punctuation mark comma, which is zarez.