Top Definition
The lubricant used to have anal sex. Unlike most, this lubricant is edible and tastes great. Bunsen butter light is low in trans fatty acids, calories, and is part of a well balanced diet.
Bunsen butter is the only lubricant my wife and I can eat and have hours of lubricated anal sex with.

A healthy low carb alternative is "I can't believe it's not bunsen butter light"
by Symore October 27, 2006

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