大后天

three days from now / day after day after tomorrow

see 大夫[dai4 fu5]

big; large; great / older (than another person) / eldest (as in 大姐[da4 jie3]) / greatly; freely; fully / (dialect) father / (dialect) uncle (father's brother)

empress / queen / (archaic) monarch / ruler

back / behind / rear / afterwards / after / later / post-

the day after tomorrow / life after birth (the period in which one develops through experiences, contrasted with 先天[xian1 tian1]) / acquired (not innate or congenital) / a posteriori

day / sky / heaven