Correct
拉黑
/ lāhēi /
Strokes
Definition
to add sb to one's blacklist (on a cellphone, or in instant messaging software etc)/abbr. for 拉到黑名单
Example
As a Verb
block sb on a social networking website; blacklist sb/sth
1
Zài
在
QQ
QQ
/
wēixìn
微信
shàng
上
lā
拉
hēi
黑
mòshēngrén
陌生人
block strangers on QQ/WeChat
2
Lā
拉
hēikōng
黑空
nù
怒
chéngkè
乘客
blacklist passengers for air rage