The greasy sweat that occasionally forms between the buttocks when one is working a long shift, or hiking on a hot day. Sometimes aggrevated by a hangover or a shoddy ass wiping. Can lead to monkey butt.
I drank too much vodka the night before I had to work a double at the restaurant. My voodoo butter gave me a terrible itch!

That construction worker is so sexy, I would spread his voodoo butter on a cracker!
by ineffablejoy January 3, 2010
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A lady's love juice, also known as fanny batter, sex syrup or fuck muck
"I could barely recognise my own Johnson for the layer of "Voodoo Butter" that enveloped it"
by Triple Double Dipper September 12, 2008
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nasty pussy juice film left on panties or thong....

....from Frank Zappa's 'tinseltown rebellion' album.....the panty rap cut.......
the famous 'voodoo butter' underwear that made his head snap back .......
by mickonboo February 14, 2007
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