关门大吉

to close down a business for good and put the best face on it (idiom)

mountain pass / to close; to shut; to turn off / to confine; to lock (sb) up; to shut (sb in a room, a bird in a cage etc) / to concern; to involve

to close a door / to lock a door / (of a shop etc) to close (for the night, or permanently)

gate / door / CL:扇[shan4] / gateway / doorway / CL:個|个[ge4] / opening / valve / switch / way to do something / knack / family / house / (religious) sect / school (of thought) / class / category / phylum or division (taxonomy) / classifier for large guns / classifier for lessons, subjects, branches of technology / (suffix) -gate (i.e. scandal; derived from Watergate)

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)

very auspicious / extremely lucky

lucky / giga- (meaning billion or 10^9) / surname Ji / abbr. for Jilin Province 吉林省[Ji2 lin2 Sheng3]