Tomasz Hanusiak, creator of Blefuj
Published: 2026-07-10 · Updated: 2026-07-12
This guide describes rules and mechanics actually available in the Blefuj game.
Every word in Blefuj goes through the same set of questions before it ships. This is a behind-the-scenes piece: we show the criteria we use to write and reject words, without revealing the words themselves, because that would spoil your games.
What makes a word good
A good bluffing word needs many independent lines of association. “Pizza” works because you can approach it through toppings, shape, country, delivery, the oven, a party, six different tracks, so five civilians won't collide. A one-track word ruins the round: everyone wants to say the same thing, the first player “spends” the only clue, and the rest sound like impostors.
- At least a few independent association tracks.
- Everyone at the table knows what it is, no expert knowledge.
- You can talk about it without naming it outright.
- It avoids sensitive or excluding topics.
Easy versus hard words
An easy word is concrete and sensory: you can see it, touch it, hear it (“beach”, “bicycle”, “pancakes”). Associations come naturally, so rounds are fast and great for beginners. A hard word is abstract or fuzzy (“jealousy”, “Monday”, “luxury”), civilians themselves aren't sure which association is “correct”, which makes it easier for the impostor to blend in. That's why difficulty in Blefuj doesn't mean how rare a word is, but how hard it is to describe indirectly.
Similar-word pairs: Chaos and Duo
In the Chaos variant the impostor gets a similar-but-different word, and in Duo two players guess whether they had the same word. Both modes live or die on the quality of the pair. A good pair shares most associations and only diverges at the detail level, like “pancakes” and “waffles”: both sweet, both served with fruit, but only one is crispy with a grid.
- Too similar (“mug” and “teacup”): the differences only show at details nobody naturally mentions, rounds end in a coin-flip guess.
- Too obviously different (“bicycle” and “aeroplane”): the very first clue (“pedals” or “airport”) settles the puzzle instantly and the tension dies.
- Just right (“lake” and “sea”): water, beach and holidays fit both, but “waves”, “salt” or “mosquitoes” quietly start to separate them.
Balancing general knowledge
A word has to be fair to the whole table. If half the group doesn't know what something is, the game stops testing bluffing and starts testing knowledge, a different, worse game. That's why words that require specific knowledge (titles, characters, technologies) go into separate, clearly-labelled categories you opt into, while the universal categories stay at the level of “every adult and teenager knows this”.
Cultural and language pitfalls
Blefuj runs in Polish and English, so every word has to survive translation. That's harder than it sounds: some words have two meanings in one language and one in the other; some phenomena are local (the beach windbreak is a very Polish institution); and some associations rest on wordplay that dies in translation. A word ships in both languages only when it has a comparable number of association tracks in each, otherwise we write a different word for that language instead of force-translating.
The one-association trap
The most common reason we reject a word: every road leads to the same clue. A classic example is “rainbow”, nearly everyone thinks “colours” first. The opening player says it, and the remaining civilians are stranded: every further clue is either a repeat or a strained stretch that looks suspicious. We test this with one simple question: “would five people in a row say five different things here?”. If not, the word is out, however pretty it is.
How we check categories
- An editorial review: we score each word against the criteria in this article, association tracks and the knowledge needed to play it.
- Automated validators (run on every data change) enforce unique ids, complete PL and EN translations, length limits, no duplicate words within a category, a minimum word count per category, and that the impostor's hint never contains the word itself.
- In the game you can hide a word you didn't enjoy, or flag a problem with it. That data deliberately stays on your device only, it is never sent to any server, so it doesn't reach us.
- Database fixes come from our own play sessions and from feedback players email us at kontakt@blefuj.pl.
You only see the effect of these filters at the table: a good category is one where no word ever needs a “what did the authors mean” debate.