The structure A的A，B的B
The structure A的A，B的B 
indicates a variety of something.
We can use the structure A的A，B的B to list the actions of something or someone.
In this case, both "A" and "B" are replaced with verbs.
indicates a variety of something.
We can use the structure A的A，B的B to list the actions of something or someone.
In this case, both "A" and "B" are replaced with verbs. Pay attention
This structure is used in spoken language.
Examples
那天我们终于见面了，聊天的聊天，开玩笑的开玩笑
We finally met to talk and had fun that day
nèi tiān wǒmen zhōngyú jiànmiàn le, liáotiān de liáotiān, kāiwánxiào de kāiwánxiào
晚会上，大家喝的喝，唱的唱
Everyone was drinking and singing at the party
wǎnhuì shàng, dàjiā hē de hē, chàng de chàng
We can also use the structure A的A，B的B to list the features of something or someone
In this case, "A" and "B" are replaced with adjectives.
Examples
秋天树叶，红的红，绿的绿，真美啊！
The leaves on the trees are red and green in the autumn. It's so beautiful!
qiūtiān shùyè, hóng de hóng, lǜ de lǜ, zhēn měi a