In order to butterfinger, one must first excrete loose, watery bowl movements (diarrhea) through their anal canal. As this process is taking place, a second party (preferably a lover) inserts their philanges into said anal canal thus acquiring their lovely brown butter. The second party may then do what they please with their sweet juice.
Bartholomew: yo, bruh, I don’t feel so good. I think I have diarrhea.

Squinphoneous II: Yoo, bet, let’s butterfinger!! 💩
by TheAguirres November 19, 2018
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When a person eats butterfingers and then sneezes all over the back of your head or directly in your face.
After a resounding night of trick or treating, Janine in a drunken stupor spat on her friend in a wild butterfinger shower.
by sumnoidfucksgoats October 30, 2015
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A butterfinger that you've seen made in a factory full of men.
Bro, I just ate a manmade butterfinger, it was so good.
by Pepsicoladelicious February 16, 2023
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