How can I express this in English?
How can I express the sound or effect of rubbing your skin or something smooth and hard like a waxy floor in English? In Korean, this can be expressed as "뽀드득뽀드득(ppodeudeuk-ppodeudeuk)", but I don't know in English and also I haven't seen any expression of it in English.

For example:

"You should wash your skin until it __________." (makes rubbing/brr-ing sound?)
"If your feet get sweaty, then you can feel __________ in the shoes." (rubbing/brr-ing feeling?)

Thanks!

Question

How can I express this in English?
How can I express the sound or effect of rubbing your skin or something smooth and hard like a waxy floor in English? In Korean, this can be expressed as "뽀드득뽀드득(ppodeudeuk-ppodeudeuk)", but I don't know in English and also I haven't seen any expression of it in English.

For example:

"You should wash your skin until it __________." (makes rubbing/brr-ing sound?)
"If your feet get sweaty, then you can feel __________ in the shoes." (rubbing/brr-ing feeling?)

Thanks!

Answer

You should wash your skin until it is squeaky clean. 
If your feet get sweaty, then you can feel them sticking in *your* shoes. 
or
If your feet get sweaty, then you can hear them squeaking in your shoes.