A magical substance which emerges when heating water over a gas stove which has the same effect of heating water as the burning gas.
You cannot disprove or argue the existence of boil-o!
by April 12, 2022
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A magical substance that casues water to boil. This word was invented by Vsauce.
What if there was a stove that emitted boil-o that would cause water to boil?
by Eushshtb September 17, 2021
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A term coined by Michael Stevens of Vsauce, Boil-o is an invisible, undetectable, unverifiable/unfalsifiable substance that appears whenever things begin to boil. While, yes, the phenomenon of boiling is perfectly explained without Boil-o, Boil-o is still there.

Boil-o is used as an example of redundancy. If a phenomena is perfectly explained without something, why include the something?
"Johnny: Yo man, I'm cooking up some pasta, you want some?
Mike: Yeah, sure, just start boiling the water.
Johnny: Don't you mean "apply BOIL-O to the water?"
Mike: For fucks sake, John, I don't want to get into this philosophy shit, it's been a long day, just- just tell me when you're done, alright?
Johnny: Jeez man, fine, I'll tell you when it's done.
Mike: Thank you.
by Hexiliac June 8, 2022
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Boil is a word for corny but better. If you see a commercial of a family dinner and everyone is smiling like idiots I would consider that as boil.
Wow that’s so boil!
by Someonethat’ssupaswag December 26, 2022
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A white plump oily bump
Amber shouldn't have been working in the garden all day without washing her stinky pussy, so she got a boil.
by TheDudeFromCoon June 10, 2022
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Like a pimple, but even worse.
Imagine you have a pimple.

Now, imagine that very same pimple, but twice as large and even more sensitive. Like, so sensitive that it will flare up and burn like hell if you just accidentally brush something against it. That's a boil for you. Did I mention that it takes almost a week of rigorous treatment to make it go away?
by Someone who kinda exists January 19, 2022
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