Feces secretion associated with patients who have had their anus fused together. This process of the fusion of the anus is commonly referred to as anal fusion. Anal fusion has been experimented with in the realm of alternative energy.
Dude! After my anal fusion I had some serious leftover butthole sauce!!!
by Jesusbibleman February 20, 2011
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When you finish taking a liquid poo and realize there's no toilet paper.
McKrizzle: "Will you bring me a roll of toilet paper? I just pee-pooped."

LadyL: "We're out."

McKrizzle: "You better find some or I'll rub my sauce butthole on you."
by LaLa Girlfie March 5, 2011
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The liquidity substance that pours/leaks out of anal cavity during and after one has received multiple anal cream-pies. Usually a combination of blood and semen, with the consistency of Siracha-ketchup.
Girl: Ugh, after last night’s rendezvous with all the guys, I’ve been leaking butthole sauce all morning!
by Krispykris September 14, 2021
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