eat your ass with a spoon
You stick a spoon up their butt and twist it like you're mixing a drink, then you pull out their guts and eat them like a salad.
He ate my ass with a spoon and said it was the best salad ever.
She used a spoon to eat my ass because I was being messy.
I ate my mom's ass with a spoon and said it was the best meal of the day.