PlastiBagGender, or PlasticBagGender is a Xenogender for individuals who feel like a plastic bag drifting through the wind, wanting to start again. This gender is often for people who feel a strong connection to garbage (specifically plastic bags), the song Firework by Katy Perry, or generally someone who's gender is about being down and wanting to start over.
This gender can also be classified as a Memegender or Musicagender. It was made with neurodivergent individuals in mind, However, anyone may identify as plasti-bag gender.
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This term was coined on twitter originally by a user named ee(@uKoreaboo). The user came out as plasti-bag gender and described why they felt this way. They're also the official maker of the flag. The tweet can be seen here.