Meaning of duì jìn:
duì jìn
对劲
Adjective
suitable; to one's liking
Zhè jiàn yīfu yánsè zhēn duì jìn.
这件衣服颜色真对劲。
The color of this clothing is really to my liking.
Verb
to get along together
Wǒ hé tā xiāngchǔ de hěn duì jìn.
我和他相处得很对劲。
He and I get along very well.