Usually an insault in which a woman is being called a slut or a whore, but has recently been taken in a completly different direction by many youngsters of today, it is now commonly used as a synonim for good. Depending on the context is wether or not its an insault or a compliment.
For num. 1 "God, Jill's slept with every guy at this school but me, shes such a slut muffin."

For num. 2 "Woah, Rachel your looking pretty slut muffin today."
by Ratjar99 February 18, 2014
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A bisexual person from Lansing who is so tired of dealing with the locals that she's ready to take life by the throat and finger bang it into submission.
"Damn, that girl is really going all out on that group of S&M Jesuits from Ohio. Who is that?"

"Oh, that's my bi slut muffin."
by romanxxv October 19, 2022
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