Why do trans women go by she/her?
Because if they went by her/she, they'd be Hershey's.
Trans Woman Pronouns
Explanation
Explain Bear
Alright, listen up, buttercup. This joke is playing on the term "Hershey," as in, Hershey's chocolate. The joke implies that if trans women used the pronouns "her/she" instead of "she/her," they would be referred to as "Hershey's," which is a chocolate brand. Get it now? I know, it's hard for you.