its another word of saying ''kill your self'' but not so violent. Just replacing ''kill'' for ''mill''
by yurrrdurrr March 21, 2022
Get the mill your selfmug. 
On January Second is the National Your Past Self Day, it is simple, you just be your past self! (if you remember your past self.)
by JustMoonlight. July 18, 2023
Get the National Your Past Self Daymug. (a black person, undeniably a male) to ejaculate and rub their semen on themselves to try to look white.
by DefinitionsPlug June 11, 2024
Get the Hit vanilla cream to help out with your self esteemmug.