This prompt begins with creating a title. Think of a piece of sexist (or potentially sexist) language. It might be a phrase, a catchphrase, a movie title, a name you've been called, or even a piece of negative self-talk that runs silently through your own head. If you're having trouble finding a good one, brainstorm a list of them so you have a bunch of options to choose from.
Put this piece of charged language at the top of your page, and then, write a poem underneath.
You might write a letter addressed to this piece of language. You might recount the story of your encounter(s) with this piece of language. Or, you might get conceptual and write a list of metaphors for how encountering this language makes you feel. You might also make a list of responses or rebuttals.
If you're looking for more online reading on the topic of abusive language and want to feel inspired, The Radical Copyeditor is one of my favorite places on the internet for discussions about language, privilege, and power.