rotten egg

noun2

1. •
   (slang, humorous) A person who is the latest, the last, or the slowest in a group to arrive somewhere or to perform a certain task.

   • Last one there is a rotten egg!
2. •
   An egg (“closeted transgender person”) who overcompensates by being actively transphobic.

   • Or because they themselves experience gender dysphoria but have gone down the rotten egg path. — 2021