The act of being a giant slut/whore.
Also, a term of endearment.
OMG! Did you see Dan with that girl last night? She was SUCH a slutterbutter.

Girl to her friend: "Love you slutterbutter." <3
by HRA623 May 18, 2011
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a promiscuous girl who spreads her self all over town.
dam molly is such a slutterbutter she banged three guys in one day
by gizmorpheus May 8, 2015
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The act of covering a naked woman in peanut butta and wiping it off with ya dick and having her suck it.
hey girl, you wanna go for a round of slutterbutter
by owugbfeirvb ;r ;e;ub t;oebu ot December 11, 2019
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