What is the expiation for someone who has not fasted for 6 years?

If a woman has missed six years of Ramadan (definition) fasts: If her not fasting was without a valid excuse, then she is sinful and must repent and make up the fasts, in addition to feeding a poor person for each day if she is able; otherwise, just making up the fasts and repenting suffices. If her not fasting was due to a legal excuse, then she bears no sin for that, but she would be sinful if she delayed making up the fasts without an excuse. She must make up the days she missed. If she is not certain of the exact number, she must continue making up fasts until she is reasonably sure that she has fulfilled her obligation. Delaying the making up of Ramadan fasts without a valid excuse necessitates, according to the majority of scholars, a fidyah (definition) (expiation) of feeding a poor person for each day. As for intentional sexual intercourse during the daytime in Ramadan, the major expiation (kaffarah (definition) kubra) is binding upon the husband only, according to the preponderant opinion, and not upon the wife. The major expiation is not required for intentional eating or drinking.