What is “one in a krillion”
“One in a krillion” means one of an unimaginably large number, so extremely rare, unique or lucky. It is the krill version of “one in a million”.
The phrase stacks two jokes. The first is a pun on krill, the tiny shrimp-like crustaceans of the Southern Ocean. The second is “krillion”, an invented number word like “zillion” or “bajillion”, used for a quantity too big to count. Put together, “one in a krillion” describes a single individual standing out from a swarm of countless identical ones, and also odds so long they are basically impossible.
The image works because krill really do live in staggering numbers. Antarctic krill gather in swarms that can stretch for kilometres, and the species is among the most abundant animals on the planet by total weight. Being one in a krillion means being noticed in that crowd.
Where “one in a krillion” comes from
The phrase is best known from the 2011 animated film Happy Feet Two, the sequel to Happy Feet. Among the penguins are two krill, Will and Bill, voiced by Brad Pitt and Matt Damon. Will decides he does not want to be just one more krill in a swarm of trillions. He wants to strike out on his own and move up the food chain, while his friend Bill keeps trying to talk him out of it.
Will’s ambition to be “one in a krillion” became the most quoted joke of the movie, and many reviewers called the krill subplot the best part of the film. Years later, short clips of Will and Bill keep circulating on social media, which is why the phrase still gets searched and why people who look for a “krillion movie” are usually looking for Happy Feet Two.
How people use “one in a krillion”
In everyday use the phrase has three common meanings:
- A compliment: “You’re one in a krillion” means “there is nobody like you”, the sweeter, sillier cousin of “one in a million”.
- A self-description: “I am one in a krillion” or “I’m one in a krillion” is a tongue-in-cheek way of saying you are unique, often on a profile, caption or meme.
- Odds: “The chances of that are one in a krillion” means practically zero.
As a meme it often comes with an image of a lone krill, a nod to Will. It is light-hearted. Nobody uses it in formal writing, and that is part of its charm.
One in a krillion vs the Krillion daily game
In 2026 the phrase got a second life through Krillion, a free daily game at krillion.io. The game borrows the joke as its whole premise. You play as a small krill diving into the ocean, and each day you answer seven prompts. The rarer your correct answer, the deeper you sink. Landing an answer almost nobody else typed is, quite literally, being one in a krillion.
The game even names its best answer for each prompt “the Krillion”: a hand-picked gem that is rare but still findable. No wonder “I am one in a krillion” is the natural caption after a deep dive. The phrase also inspired a reverse game, Noillirk (“Krillion” spelled backwards), where the most common answer wins instead. That game has since become Crowdict.
Tips to actually be one in a krillion in the game
- Distrust your first idea. In Krillion it is usually the answer most of the swarm typed.
- Avoid the “too clever” pick. The answer that feels secretly smart is often everyone’s secret pick.
- Go specific. A named variety, species or lesser-known example is rarer than the general category, and still valid.
- Respect the prompt’s rules. A rare answer that breaks the wording scores nothing.
- Read today’s hints. Our Krillion hints page has an angle for every prompt of today’s dive.
FAQ
What does “one in a krillion” mean?
It means one in a huge number, extraordinarily rare or unique. It is a pun on “one in a million”, swapping in “krill”, the tiny shrimp-like animals that live in vast swarms.
Where does “one in a krillion” come from?
It is best known from Happy Feet Two (2011), in which two krill, Will and Bill, voiced by Brad Pitt and Matt Damon, leave their swarm. Will wants to be more than one of countless krill, and the line became a meme.
Is “krillion” a real number?
No. Krillion is a made-up number word in the style of “zillion” or “gazillion”, meaning an absurdly large amount. It plays on krill swarms, which can contain trillions of animals.
What does “I am one in a krillion” mean?
It is a playful way of saying “I am unique” or “there is nobody like me”, usually with a wink. In the Krillion game it also fits the moment you land an answer almost nobody else gave.
What is the connection to the Krillion game?
The Krillion game at krillion.io uses the same pun. You play as a krill, and the goal is to be the one in a krillion: give a correct answer so rare that few or no other players gave it.
Is there a Krillion movie?
There is no film called Krillion. People searching for a “krillion movie” are usually looking for Happy Feet Two, the 2011 animated film with Will and Bill the krill.