At the end of the chorus, she says that she is “about to fall.” This lyric and the general tone of the song suggest that she is worried about aging because she will no longer fit within the beauty standards.

Liquid Smooth is one of two Mitski songs to feature a Japanese lyric (the other being First Love/Late Spring from the album Bury Me at Makeout Creek). 
The lyric is "崩れてゆく前に", or, "Kuzurete yuku maeni", translating to “before I collapse/crumble/fall apart.” This lyric employs a Japanese grammar construction, “てゆく” (-teyuku) that is used to convey that the subject or original state of being will go or “leave” and won’t return, which is notable as the whole song is about the transient nature of youth and beauty.

The slow melody gives a feeling of laying on a cloud and let everything flow like a river in our mind which refers to the title «Liquid Smooth»
I have been listening to Mitski for quite a while now and even though her songs are all amazing and with a unique power which transports me, Liquid Smooth have all my heart and attention. This song gives confidence and makes us feel like we aren’t nothing, that even if not everyone notices you, there’s still somebody that will take a moment to look at the beautiful person that you are and tell you how much you’re magnificent.

I'm beautiful, I know cause it's the season
But what am I to do with all this beauty?
Biology, I am an organism, I'm chemical
That's all, that is all

I'm liquid smooth, come touch me, too
And feel my skin is plump and full of life
I'm in my prime

I'm liquid smooth, come touch me, too
I'm at my highest peak, I'm ripe
About to fall, capture me

Or at least take my picture
Kuzurete yuku maeni
I'm pulsing, my blood is red and unafraid of living
Beginning to end

I'm liquid smooth, come touch me, too
And feel my skin is plump and full of life
I'm in my prime

I'm liquid smooth, come touch me, too
I'm at my highest peak, I'm ripe
About to fall

How I feel this river rushing through my veins
With nowhere else to go, it circles 'round

I'm liquid smooth, come touch me, too
And feel my skin is plump and full of life
I'm in my prime

I'm liquid smooth, come touch me, too
I'm at my highest peak, I'm ripe
About to fall, capture me

Similarly, Mitski has described her music as a place where people "can put all of their feelings, their ugliness, that doesn’t have a place in their own lives."

Public Image : 

As an Asian American woman, Mitski has felt pressure to represent her community. She has expressed discomfort about the idea of people looking to her for guidance and seeing her as a leader of change in an industry dominated by white men which comes with the attention that comes with being in the public eye, therefore preferring to keep her personal life private. 

 She left social media in 2019, around the same time she quit music, because she felt it was unhealthy for her self-image. However, she has gained massive popularity on social media. As of February 2022, her music has been featured in over 2.5 million videos on TikTok.

Views on her fanbase :

Mitski has stated in interviews that she has an uneasy relationship with her fans because she finds their relationship to her and her music overwhelming. Her fanbase has been described as both "extremely online", "cultish"

She even described the audience at one of her shows as "Unrelenting. Everyone needed a piece of me I was so overwhelmed by hands grabbing at me that I was crying."