Someone, typically a female on tumblr, who makes up and claims to be a certain gender in an attempt to feel unique. They may claim to be demiboy/genderfluid/agender/stargender. Gendertrenders will make up genders and claim gender is social construct, while sadly shitting on the trans community by making it look like a joke. These people also seem to contradict themselves on whether or not clothes have a gender, and will demand you refer to them as xe or bunself.

Got the covid-19 vaccine