Correct

马大哈

/ mǎdàhā /
Strokes

Definition

a careless person/scatterbrain/frivolous and forgetful/abbr. for 馬馬虎虎、大大咧咧、马马虎虎、大大咧咧、嘻嘻哈哈

Example

As a Noun

careless person; scatterbrain

1
shì
马大哈
  
,
zuòshì
做事
zǒngshì
总是
diūsānluò
丢三落四
  

He is such a scatterbrain that he always forgets something whenever he does anything.

As an Adjective

careless; forgetful; scatterbrained

2
Jiàoshī
教师
duì
自己
de
gōngzuò
工作
jué
绝不
néng
马大哈
  

Teachers must not be careless about their work.

Related

马大哈