Feetskin 

The form in which you insert your entire foot into an uncircumcised males genital skin

Last night was wicked I got my sister to preform feetskin on me, I can still smell the dirt lurking around

Feetskin by NaughtyMario June 11, 2019

Feetkini tan 

The tanlines you get when wearing flip flops or thongs

I can tell you were out in the sun all day your feetkini tan really shows

Feetkini tan by king gooch April 25, 2010