Top definition
A sandwich made from Marshmallow Whip (Fluf) and Peanut Butter on white bread. We all grew up with this jawn.
Don't be such a homophobic game-nerd, Mom made fluffer butters!
by ipOStrophe November 08, 2016
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2
A fluffer butter is when you add a spoon full of fluff to help the rim-job go down.
Yo j-glynn gives a mean fluffer butter.
by jackie glynn October 24, 2007
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