Correct

插杠子

/ chā gàngzi / 
Strokes

Example

As a Verb

interfere/meddle/intervene in; butt/step in; poke/push one's nose in/into

1
Shìqing
事情
běnlái
本来
jìnxíng
进行
de
得
tǐng
挺
hǎo
好
  
,
nǐ
你
fēiděi
非得
chā
插
yī
一
gàngzi
杠子
  
。

Things were going really well until you had to butt in.

2
Dàochù
到处
chā
插
gàngzi
杠子

meddle in everything