大染缸

big dyeing vat / (fig.) corrupting environment

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)

to dye / to catch (a disease) / to acquire (bad habits etc) / to contaminate / to add color washes to a painting

jar / vat / classifier for loads of laundry / CL:口[kou3]