The semen left over in a vagina that has slowly made its way out and accumulated around the labia. This semen over time dries and forms a buttery cream.
I went down on this chick and it was obvious that i was getting sloppy seconds the cum butter build up was insane.

cum butter not to be confused with duck butter

If this chick doesn't shower her boyfriend is gonna notice my cum butter.



by Jonathan M, Madison H December 10, 2008
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Cum butter is when you make butter out of your cum usaly made the old fashion way.
by N_E_K June 20, 2016
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The sweat between your ass and your balls.
I've been working out all day and need to shower off this smelly butter cum.
by WARDUKE June 20, 2010
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A Banana Butter-Cum Pie is a banana-creme pie with a dollop of whipped cum on it.
The other cadets all donated their sperm so we could all have Banana Butter-Cum Pie for dessert.
by USAF Cadet January 31, 2021
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A nut-butter & cum-jelly sandwich is a sandwich made from bread, cum, and jellied cum-shots.
Matt packed me a lunch with his nut-butter & cum-jelly sandwiches!
by eda-skip October 13, 2021
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cum that you have mixed shit and/or peanut butter with.
Guy 1 : Hey! Wanna come and make some peanut butter cum?

Guy 2 : Sure! Let's go!
by ||DreamWasTaken|| January 31, 2021
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