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1.
A slang term for the blend of menstrual blood and seminal fluid that results from sexual intercourse during mentstruation and often winds up on the sheets and/or bodies of those involved
"Ew, honey! what's on the bed?"
"Don't worry about it sweetie, it's just a little applebutter."
by grossgab May 31, 2009
 
2.
The sweaty funk that accrues between your balls and your ass on a hot day, similar in color and texture to the dark spicy puree of apples used as a breakfast condiment.
Damn, it's hot out here. I'll need to wipe away the apple butter when I get back to work at the paper exchange.
by Jeff's Mom April 15, 2006