Correct
没头没脑
/ méi tóu méi nǎo /
Strokes
Example
Definition
illogical; without rhyme or reason
1
Méitóuméinǎo
没头没脑
de
的
huà
话
pointless remark
Definition
(do or say sth) abruptly; all of a sudden
2
Lǎoshī
老师
yī
一
zǒujìn
走进
jiàoshì
教室
jiù
就
bǎ
把
yuēhàn
约翰
méitóuméinǎo
没头没脑
dì
地
xùnchì
训斥
le
了
yī
一
dùn
顿
。
No sooner had the teacher entered the classroom than he gave John a good dressing down.
Definition
(do sth) regardless of consequences
3
Méitóuméinǎo
没头没脑
dì
地
dá
打
rén
人
beat sb relentlessly/mercilessly