The phrase "year coma" refers to a long period or stretch of time where someone is unconscious or unresponsive, similar to being asleep but for an extended duration of about a year. Full definition
Awoken from a four - year coma with a metal plate in her head and a thirst for vengeance, she sets out to challenge her betrayers to the death, one by one. (movie-gazette.com)
Blanca Bolanos, a 25 - year - old from Tucson, Arizona, suffered a similar fate (convulsions, then a two - year coma ending in death) after using a cream of 6 percent each lidocaine and tetracaine prior to laser hair removal. (health.com)
Waking from a five - year coma after her former comrades turn her wedding day into a frenzied bloodbath, The Bride vows vengeance on both the assassins and her former boss, Bill (David Carradine). (metacritic.com)