It refers to someone recognising the patriarcal systems that exists in the world.
A play on the term "red-pilled" based on the movie Barbie where Barbie is offered the learn the truth by picking flat Birkenstock (and travelling to the real world) or picking a a pair of pink high heels that reject that for keeping things as they are and ignoring reality.
I used to think men should be paid more but then I got Birkenstock-pilled and realised women deserve to be paid the same for equal work
Any lesbian female (like Beanispenis) who wears manly sandals to attract other lumberjack-looking females with buzzcuts.
Birkenstock bulldykes run rampant in Colorado and New Mexico.
A left wing alternative to redpilled, and a reference to the Barbie movie when Barbie is offered a Birkenstock and a high heel, and the Birkenstock represents the truth
Oh I’m not redpilled, I’m birkenstocked
When someone does such a bad rangus on their sandals it becomes saturated with stink. Then a cow comes along and sucks it all up.
Dorian had some major Birkenstock stink going on