Another way of saying that you couldn't care a less. Similar to the expression i couldn't give a rat's ass, but you're targeting the muskrat's nuts which are its manhood and used in the production of musky perfume.

A form of torture, varying from forceful sexual activities, to beating the victim mercilessly with eggplant shaped objects, or making them watch pornography of their grandparents/parents. After a muskrat takes place it usuall takes 2 weeks to recover if you survive. YOU DON'T WANT A MUSKRAT!!

When you've got swamp ass so bad your ass cheeks squeak like a muskrat.

When a guy puts a Davy Crockett hat on a chick, hangs her over the side of the bed and proceeds to engage in intercourse.

When during sex, the male slides his scrotum into his partner's anus and once the rectal muscles close the male will try to pop his genitals out. Like a muskrat pushing its head through a hole in the ground.

The detroit muskrat is a retired hood rat with multiple baby daddies. You can usually find her on social media bashing black men because she failed at camping

When your girlfriend or wife shits her pants or the bed as your fucking her.