a grip of shit
When something or someone is so annoying it makes your insides feel like they're being squeezed by a greased up raccoon.
That kid's TikTok videos are a grip of shit, I've seen 500 of them and I still don't know why they're famous.
My boss keeps interrupting my work with stupid questions, it's a grip of shit.
That song on repeat is a grip of shit, I think my brain is melting.