Correct

陈芝麻烂谷子

/ chén zhī má làn gǔ zi /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/陈芝麻烂谷子-Chinese-idioms-Cchatty-0c277725-88aa-45fe-9216-20e68d07653f-1612778380.jpg

Collocation

1
那些陈芝麻烂谷子的往事
2
说些陈芝麻烂谷子的事情
3
记住那些陈芝麻烂谷子
4
都是些陈芝麻烂谷子

Definition

陈芝麻烂谷子

Literally means:

stale sesames and festered grains

Actually means:

old trifling stuffs

Sesames and grains of previous years, this phrase figuratively means something trifle or inessential in the past.

Sometimes it can also refer to an unpleasant event of the old days. Derogatory

很久以前的芝麻和谷子。比喻很久以前的琐碎事情或无关紧要的东西。

有时指不愉快的往事。具有贬义色彩。

Example

Used as subject, object or attributive. (作主语、宾语、定语)
1
de
记忆力
bìng
méiyǒu
没有
suīzhe
随着
niánlíng
年龄
de
zēng
增大
ér
shuāituì
衰退
  
,
30
30
nián
qián
以前
de
chénzhīma
陈芝麻
làn
zi
谷子
hái
de
记得
qīngèrchǔ
一清二楚
  

His memory did not decline with age, and 30 years ago, Chen Sesame's rotten grain remembers it.

2
men
我们
jīng
已经
jìn
进入
xīn
shì
世纪
le
  
,
lǎoshi
老是
jiǎng
xiē
那些
chénzhīma
陈芝麻
làn
zi
谷子
  
,
diǎn
si
意思
méiyǒu
没有
  

We have entered a new century, always talking about those sesame rotten rice, not at all interesting.

3
Zhè
duì
夫妻
chǎojià
吵架
jiù
fān
jiùzhàng
旧账
  
,
chénzhīma
陈芝麻
làn
zi
谷子
de
shìr  
事儿
nǎor  
一股脑儿
quán
dǎo
chūlái
出来
  
,
yīn
因此
jīngcháng
经常
dǎozhì
导致
zhànzhēng
战争
shēng
升级
  
,
nào
de
kāijiāo
不可开交
  

The couple quarrelled over the old accounts and poured out all the brains of Chen Sesame's rotten grain, which often led to the escalation of the "war", which was too much to tell.