"I heard you don't like spiders"
Muffet is a spider that is obsessed with money. She is also the bitch of Rule 34.
Muffet has a shop in Hotland. She wanted to charge Frisk, but in the end he sucked it for free because he threatened to cut her tits. (Spiders have tits?)
She has an army of spiders that she uses to sell her numerous rubbery donuts, and she also keeps several dildos in her ass.
Se has a strange fetish about mummifying her victims and raping them while they are still alive.
Whether she's raping them with way to high prices or just raping them period. They're getting fucked anyway.