Skinseed

A Minecraft based social media app where users can upload skins for Minecraft, in both 64x64 and 128x128 format. It's been published since 2016.
Unfortunately, it has a shit-ton of trolls, but also shit-ton of iPad kids. Trolls would occasionally spam porn, while some iPad kids that called themselves Loftwings (and claimed not to be furries) bullied someone into killing themselves. Several "wars" have gone on on this app. Pedophiles love this app too, apparently (Like SaraTheEspeon, a pokefurry that was 22 and preyed on some kid called NickTheUmbreon. And another nonce called LOD/LadyOfDarkness whos 17 right now and preyed on like 7 minors.). Basically, Skinseed is basically Minecraft Twitter.
It got so bad that the creator, Jason Taylor, aka Jaytay or "discord mod shaped" had to make an update in early 2022 that made skins need to be reviewed.

Person 1: Skinseed sucks ass frfr
Person 2: Skinseed? You mean shitseed, right.
Person 1: holy shit that's a better name

You're the wart on my ass

A term meaning someone is super close to you. This may be negative or positive.

Person 1: You're clingy, almost as if you're the wart on my ass!
Person 2: nuh uh