Place this clip right after the on-screen accusation in your edit, then follow it with the Eww Brother Eww Sound Button for a second reaction beat. For a confused beat before it, add the Ceeday Huh Sound Button so the denial hits as the answer.
About this sound
This is a short 3.3-second voice clip of a young woman saying 'No I'm not an e-girl' in a flat, defensive tone. The delivery feels funny and slightly exasperated, like a quick shutdown to teasing, which makes the denial itself the punchline for listeners who hear it out of context.