吊儿郎当 [-r lánɡ dānɡ][口] (形容仪容不整、作风散漫、态度不严肃等) careless and casual; fool around [about] during the working hours; slovenly; take things easy; take a devil-may-care attitude; (of a person) untidy, undisciplined, careless, frivolous, etc.; utterly carefree：
•¶ 村干部说他们不好好生产，吊儿郎当。 The village cadre said they did not do productive work, they just fooled around.