Elijah's poem is a short exchange between a stranger and a speaker who keeps being misread. Someone asks whether the speaker is a girl or a boy. The answer is simple: "im a boy." But the questioner doesn't accept it. Because the speaker "sounds like a girl," they decide that settles the matter, and later talk about the speaker as "she," as if the speaker weren't even part of the conversation.
What stands out is how calm the speaker's replies are. They are tiny and flat: "im not though," then just "im not." There's no argument, no long defense, and the lowercase, unpunctuated style makes them sound tired, almost worn down. The other voice, set in quotation marks, is confident and dismissive. The speaker's lines are not.
The mood is frustrating and quietly painful. The poem shows how it feels to state a basic truth about yourself and have it overruled, and how the repetition suggests this may not be the first time.