wha-I don't know, it was the first thing that came to mind!

[wow, he got really close really fast and you are suddenly kind of nervous about that!]

[you want to say it's not a big deal but you're pretty sure that will make him even angrier so instead-]

I have nipples!

[you yell it loud enough that it actually kind of echos and okay, you weren't expecting that but that's okay!]

See! Nipples are bad anyway, they're like a huge weakness so you don't have to worry about not having any! Besides, Gamzee and Tavros are totally shirtless over there so anyone with eyes can see trolls don't have them!

[you're not entirely sure if there's anyone here who doesn't have eyes but you're not going to say anything about that]